When you buy through links on our site, we may earn an affiliate commission at no cost to you.

The Best Cold Water Fish For A Low-Maintenance Tank

For those who’re beginning your personal house aquarium, chances are you’ll be tempted into pondering {that a} heat aquarium is the one method to go. However what if you happen to don’t need to purchase a heater – or if a warm-water arrange simply isn’t the fitting selection for you?

Don’t fear! You continue to have loads of choices. There are many fish that require no heating component, and you may simply begin your personal aquarium habitat with out having to spend money on an costly heater.

The Attract Of Chilly-Water Fish

Chilly water fish, because the identify implies, are those who not solely survive however thrive in colder temperatures. In truth, there are many cold-water fish who can’t reside in heat waters that you simply usually use to deal with tropical fish.

Due to this fact, there are a lot of species of chilly water aquarium fish which you can hold in species-only tanks. Nevertheless, chilly water tanks are usually less expensive – you will not have to purchase heaters or burn up electrical energy tin order to run the m – they usually additionally are usually decrease upkeep. In any case, you received’t have to fret about protecting the water temperatures up!

Moreover, algae has a harder time creating and rising in chilly environments. You’ll need to ensure you clear your tank, nonetheless, after all, however you’ll seemingly discover that your cleansing duties are drastically decreased.

The Finest Chilly Water Fish For A Low-Upkeep Tank

Able to get began? Think about a few of these prime coldwater tank species.

1 Fancy Goldfish

Fancy Goldfish 2
Photo by Goldfish Eiei

The identify might say fancy, however there’s nothing high-maintenance about these fish in any respect! Fancy goldfish are bred selectively from the Prussian carp. Though widespread goldfish aren’t nice aquarium inhabitants, rising to huge sizes and requiring aquariums which might be no smaller than 150 gallons, fancy goldfish don’t get almost as massive.

As well as, fancy goldfish have a tendency to maneuver round extra slowly than their widespread cousins.t hey can simply be housed in a 40-gallon breeding tank – you possibly can simply match two goldfish on this measurement tank. They’re enjoyable to personal as they’re extraordinarily interactive. Plus, they thrive in most house environments.

You’ll be able to hold your fancy goldfish in a tank that’s between 55 and 80 levels Fahrenheit. They’ll survive wider rangers, getting as chilly as freezing and as sizzling as 90 levels, however chances are you’ll discover drastic modifications in conduct and an elevated probability of illness at these temperatures. Due to this fact, you may be higher off protecting your goldfish at mor enetural temperatures.

These fish are extremely social, so it’s endorsed that you simply hold them in paris of in a gaggle. They aren’t finicky with regards to their meals, however it would be best to price stem principally plant-based pellets and greens as an excessive amount of protein could cause them to bloat. You may additionally need to feed them blanched greens as soon as per week to maintain them wholesome.

2 White Cloud Mountain Minnow

White Cloud Mountain Minnow
Photo by animalisterra

These small education fish may be present in two totally different colour varieties – the traditional sample and the gold colour. They normally solely attain about an inch and a half in size. As quick swimmers, they need to be saved in 20 gallon tanks. This may give them loads of room to maneuver round.

These fish can deal with temperatures between 40 and 80 levels however choose to be in these ame temperature vary as goldfish. They aren’t nice tank mates for goldfish, nonetheless, so do not suppose that simply because they’ll tolerate the identical temperatures that you need to hold them on this vary. There’s an opportunity that your goldfish will attempt to eat them since they’re so small.

However, these charming little fish are nice additions to most tanks. As a result of they’ve attractive, glitter scales and an iridescent shine, they are going to add a pleasant complement to only about any chilly water tank setting.

3 Rosy Purple Minnow

Rosy Red Minnow
Photo by Sunland water Gardens

These fish are a selectively bred species, intently associated to the grey fathead minnow. These fish are small, hardly ever rising over two inches. They some faculty however generally don’t. However, you need to contemplate investing in a minimum of six of those fish, as they’re condenser social species.

They’ll tolerate an enormous temperature vary, which is a part of what makes them so enticing to novice fish keepers who’re attempting to arrange a coldwater group atmosphere. Ideally, these fish must be housed in temperatures between 50 and 85 levels, however they are often saved in waters which might be as chilly as freezing or as sizzling as 100 levels.

Do not forget that with these fish, the upper the empteruate, the faster the metabolism and the brief rehte lifespan. Hold them in colder waters to maintain them wholesome. However, these fish are hardy species that makes them a super piece for learners trying to hold a low-maintenance tank.

4 Asian Stone Catfish

These fish do not have fairly as massive of a temperate vary as among the different fish we’ve talked about, however they’re nonetheless distinctive fish that do fairly effectively in fully unheated aquariums.

Asian stone catfish must be saved in a temperate vary of 60 to 75 levels. They’ll’t survive outdoors a spread that’s a lot bigger than that. They’re distinctive of their look and small measurement, one of many few fish that may reside their whole lives in a 5 gallon aquarium – they usually’re much more distinctive as a result of they’re one of many few catfish species that may do that.

A ten gallon tank is good for this fish species as a result of it’s a education fish. It is best to attempt to hold three to 6 of the small 1.5-inch fish in the identical tank.

5 Climate Loach

Weather Loach
Photo by Duca di Spinaci

Also called the Dojo loach, this widespread loach has a dense, cylindrical physique. It’s fairly cute regardless of its massive measurement. Typically, it should develop as much as ten inches lengthy, and wishes a comparatively massive faculty of compulsion to maintain it snug. This fish may be present in two totally different colour varieties – gold in addition to a black-spotted silver selection. These fish must be saved in teams of six and must be housed on sand substrate.

Why? Climate loaches are burrowing fish. In the event that they attempt to burrow down into gravel, there’s a good probability that they are going to damage themselves. Consequently, hold them on a comfortable substrate when it comes to substrate, these fish are fairly adaptable. They are often housed in tanks that vary from 0 to 80 levels Fahrenheit.

6 Paradise Fish

Paradise Fish
Photo by Daniella Vereeken

Because the identify suggests, the paradise fish is one that can conjure up photos of a tropical paradise with its attractive colours and chic look. Nevertheless, this fish will not be designed for tropical waters, as an alternative preferring waters with temperatures between 60 and 85 levels Fharneheit. Consequently, it’s the right candidate for an unheated tank.

The paradise fish has the popularity of being a bit aggressive. It can be exceptionally nippy. Consequently, you have to to train warning with the tank mates that you simply select. Give Your fish loads of house to swim round – a minimum of 30 gallons -so that it has room to maneuver and discover.

This fish is sort of stunning to take a look at, possessing attractive flowing fins and a vibrant coloration. It could possibly attain about 4 inches lengthy and is simple to feed. So long as you present it with acceptable tank mates that won’t be the goal of the paradise fish’s aggression and nipping behaviors, you possibly can simply home it in a group aquarium.

7 Medaka Ricefish

The medaka rice fish is one other in style coldwater fish. It’s one in all a number of forms of ricefish that may tolerate low temperatures, however it’s maybe the most cold-tolerant ricefish of all of them. This species is troublesome to search out in lots of pet shops, but when you’ll find one, it will likely be effectively value your time. It’s stunning to behold and is rapidly turning into a extra widespread, in style species of fish.

It is a nice species for elevating in an outside pond. You’ll be able to hold it with different small fish, like white cloud mountain minnows or rosy purple minnows, as it’s a peaceable group species. This fish can tolerate temperatures as chilly as 40 levels and as heat as 105, making it an ideal candidate for an outside pond.

Most medaka rice fish have beautiful orange colours, which stand out sharply in opposition to the white rims on their fins. They’re completely attractive to view and since they get together with so many different species, they’re a fish worthy of inclusion in your chilly water tank.

8 Odessa Barb

Odessa Barb
Photo by Jason Sleator

A gorgeous fish that prefers to be housed in a faculty, the Odessa Barb is the right candidate for a chilly water tank atmosphere. This fish has scales ringed with black together with black-spotted fins, daring purple stripes, and a surprising total look. These fish must be saved with a number of companions – a minimum of 5 others – with a purpose to hold them comfortable and wholesome.

This fish seems fairly beautiful in a education group. They’ll reside in tanks that vary between 65 and 75 levels. Attempt to not hold these fish in communities with tetras or barbs, each of which generally tend to nip if they’re in too-small colleges. Growing the dimensions of the respective species’ education group can typically eradicate this conduct.

9 Rosy Barb

Rosy Barb
Photo by groovysuvi

The rosy barb is good for a big tank – ideally one that’s 50 gallons or bigger. It’s uncommon for these fish to achieve six inches of size, however you have to to maintain them at school for at least six people.

These fish are spectacular when it comes to their attractive pink and purple colours. Additionally they attain spectacular sizes – six inches isn’t that enormous, however it’s really one thing to behold when it’s in such a big group.

Rosy barbs choose to be housed in tanks which might be between 65 and 75 levels Fharenheit. They’ve lengthy fins that are fascinating to see, however could make them a topic of fin nipping if you happen to home them with species which might be susceptible to this type of conduct. To keep away from this, you possibly can choose a short-finned number of the Rosy Barb or home them with species that aren’t susceptible to nipping behaviors.

Rosy barbs must be housed in planted tanks – the purple in opposition to the inexperienced will really be a outstanding sight to behold.

10 Gold Barb

Gold Barb
Photo by Randy Keats

One other barb species on our record, the Gold barb is extra much like the Odessa barb than it’s the rosy barb, significantly with regard to its measurement. Often it should solely attain about three inches lengthy. It has a sample that’s much like the Odessa barb, with golden scales which have black rings across the perimeters.

These fish like tanks which might be between 65 and 75 levels Fahrenheit. Ideally, it would be best to home them in a rank that’s between 20 and 30 inches lengthy. This may give the fish loads of house to swim round. It is best to be capable to hold six fish in a tank of this measurement. As with different barbs we’ve talked about, these fish match effectively right into a group tank setting – though they are often considerably nippy.

11 Pygmy Sunfish

Pygmy Sunfish
Photo by Uland Thomas

There are a number of species of pygmy sunfish so that you can select from. All of those are fairly stunning to take a look at and are additionally exceptionally colourful. Pygmy sunfish can tolerate temperatures starting from 40 to 80 levels Fahrenheit, an enormous vary that’s particularly useful if you happen to aren’t certain the place to begin.

These fish may be saved in tanks as small as simply 5 or ten gallons. Typically, they’re saved in ponds, not resulting from their measurement however due to their broad temperature tolerance. Though they’ll survive in a variety of temperatures, we advocate protecting them between 60 and 75 levels.

Pygmy sunfish do greatest in species-only tanks fairly than group settings. It is because they’re fairly small, shy, and considerably choosy with regards to meals.

12 Bloodfin Tetra

Bloodfin Tetra
Photo by Juan Valdivieso Vicuña

The Bloodfin Tetra is a beautiful education fish that can make an ideal addition to tanks 30 gallons or bigger. These fish have remarkably silver our bodies with vibrant purple colour patterns. They normally develop to about two inches in size, however they need to be saved in colleges of a minimum of six totally different people.

These fish are simple to feed. They don’t seem to be choosy within the slightest, which makes feeding them a straightforward chore.

Nevertheless, it is advisable ensure you hold bloodfin tetras in group with their very own type. This may forestall stress and likewise improve the sensation of safety that they’ve within the tank. A education fish that isn’t housed with its personal type will probably be simply confused until it has ample tank mates to maintain it firm.

13 Platy Fish

Platy Fish
Photo by Kevin

The platy is a quite common aquarium fish. Typically, it’s offered as a starter fish. This fish can attain a whopping 4 inches in size, so it would be best to begin it out in a 20 gallon tank after which probably transfer it to a tank that’s 55 gallons or bigger.

A reside bearing fish, this fish must be saved a ratio of two females for each one male. Females can change into pregnant and provides beginning to as much as 30 infants each 4 weeks. With out inhabitants controls in place, you may discover that your platy inhabitants rapidly grows out of hand. That being mentioned, platies do generally tend to exhibit cannibalistic behaviors – chances are you’ll discover that just a few infants survive from every hatch.

These fish are tolerant of an enormous array of water temperatures, from 60 to 85 levels, however the perfect vary is 70 to 85. Due to this fact, they aren’t as effectively tailored to colder temperatures as different fish, however they’ll nonetheless make as appropriate addition to your chilly water tank.

14 Panda Corydoras

 Panda Corydoras
Photo by gsaingtw

There are a number of forms of corydoras catfish on the planet. Some are appropriate for chilly water whereas others are extra effectively tailored to heat water residing. That being mentioned, the panda Cory is among the greatest fish for decrease temperatures, with the flexibility to outlive at temperatures starting from 65 to 80 levels Fahrenheit.

Some individuals hold their panda corydoras with goldfish. Since these fish attain as much as three inches, they aren’t normally sufficiently small to your goldfish to munch on. Nevertheless it is advisable watch out concerning the fish you do select to maintain together with your panda corydoras. It is because this distinctive fish has a number of spines and spikes alongside its physique, and if a fish tries to eat one – even unsuccessfully – the spines can change into lodged within the fish’s throat.

Typically, this ends in the dying of the goldfish in addition to the corydoras catfish. It’s not a threat you will need to take!

Corydoras are education fish which might be additionally fairly energetic. It is best to hold them in teams of six or extra to assist their personalities shine.

15 Mosquito Fish

Simply because the identify may lead you to imagine, the mosquito fish is a tiny little fish that does fairly effectively in all kinds of temperatures. These fish look fairly much like guppies however are distinctive in that they’ll tolerate temperatures as little as 40 levels and a excessive as 80. They’re unusual species within the aquarium commerce as a result of they tend to be nippy.

Nevertheless, they’re typically missed as a result of they aren’t as colourful as most guppies. As a substitute of providing a wide selection of colours and patterns, they have a tendency to as an alternative be a daring grey colour. You’ll be able to’t hold guppies in an outside pond, however mosquito fish may be saved nearly anyplace – they’re extremely tolerant of a range of water temperatures and also will assist hold native mosquito inhabitants down, paradoxically!

16 Bristlenose Plecos

BristlenosePlecos
Photo by Jonathan “Howie” Howard

Bristlenose Plecos are small variations of Plecostomus catfish. They normally solely attain a most of 5 inches in measurement Typically offered as algae eaters, these fish have voracious appetites that rivals that of a goldfish. Additionally they produce an enormous bio load in your aquarium, so if you happen to elevate one in all these fish, it’s essential that you’ve got the filtration system and time in your fingers to accommodate for the intensive cleansing wants.

However, these fish can tolerate a variety of temperatures. Additionally they supply a prehistoric look and a tremendous persona. They don’t do quite a bit when it comes to cleansing up algae – and can truly produce extra waste to your tank than they clear up – however nonetheless they’re nonetheless a pleasure to maintain.

17 Least Killifish

Least Killifish
Photo by Anttanager

The smallest recognized livebearer, the Least Killifish has considerably of a misnomer. This fish is definitely not least! It’s, nonetheless, fairly small, and really tolerant of a variety of temperatures.

As a livebearer, this fish doesn’t give beginning in the way in which {that a} guppy or platy may, producing 30 infants directly. Nevertheless, it should launch a single totally developed fry each couple of days. It could possibly tolerate temperatures starting from 65 to 80 levels, which most individuals can simply deal with. Temperature variance will not be an issue – you actually don’t want to fret about together with a heater or some other heat-controlling gadget until you discover that the temperature in your tank fluctuate greater than two levels each hour.

This small fish normally solely reaches about three quarters of an inch, hardly ever rising bigger than an inch and a half. They do effectively in small tanks – you possibly can even hold them in tiny five-gallon tanks. Simply be sure the tank is closely planted, as this fish may be fairly shy.

18 Danios

Danios
Photo by Wutthichai Nangkasem

Danios are tiny, fast-moving education fish. For those who select to maintain one in all these fish, it would be best to ensure you present it with loads of swimming house. Ideally, a 20 gallon tank would be the greatest beginning place, with bigger tanks even higher.

There are a number of forms of danios, a lot of which might develop bigger than 5 inches. In these instances, you have to a big tank of a minimum of 20 to 30 gallons. You’ll be able to select from a spread of hardy danio species, together with zebra, leopard, or long-finned danios. All choose temperatures round 65 to 75 levels however many can survive at 60 to 80 levels, too.

19 One-Sided Livebearer

A one-sided livebearer is uncommon to search out within the aquarium commerce, however we don’t know why – it’s a beautiful species that reproduces quickly and might tolerate all kinds of tank temperatures.

This fish has a beautiful silver or gentle tan coloration, together with black and grey horizontal spots. A quickly-reproducing fish, this species has a gestation interval of solely about sixty days. They’ll produce ten to twenty fry after gestation.

It’s possible you’ll discover that the mother and father prey on the fry, so it’s essential to take away the fry from the mother and father as quickly as they’re born.

In any other case, this tiny fish is simple to take care of. It normally solely reaches about an inch in measurement, and it’s a real coldwater fish that may thrive at colder temperatures. It does effectively in tanks that vary from 60 to 73 levels.

20 Empire Gudgeon

One other uncommon, attractive fish is the empire gudgeon. This fish has a tan and purple physique together with vibrant purple fins. It additionally has black and white bands which might be fairly spectacular to take a look at.

This fish does effectively in tanks starting from 65 to 90 levels. It requires loads of frozen meals however may also eat some reside choices. A wild caught fish, this species is used to preying on bugs and crustaceans within the wild. You’ll be able to replicate this by means of feeding out frozen meals like daphnia, blood worms, mosquito larvae, and brine shrimp.

21 Galaxy Rasbora

Additionally known as the celestial pearl danio, this attractive tiny fish solely reaches about an inch lengthy. It may be discovered with a grey physique with whit speckles, however some have distinctive orange fins. This fish does effectively in a planted ten-gallon tank, however will want a minimum of 5 different companions, as it’s a education fish.

These fish can tolerate temperatures as cool as 65 levels and as heat as 75. They aren’t choosy eaters, however they are often fairly shy.

22 Rainbow Goodeid

A fully lovable fish, this coldwater fish nearly seems like its smiling with its distinctive, cute face. It seems considerably like a puffer fish and has horizontal black stripes together with spots within the heart of its physique. Some additionally look orange.

This livebearing fish typically will not be discovered within the aquarium interest, even if it’s simple to take care of. It’s only recognized to achieve about two inches, and is commonly saved in species-only tanks. It prefers temperatures between 65 and 73 levels, and excessive temperatures can truly be fairly dangerous.

Is A Chilly Water Fish Proper For Me?

If you wish to hold fish however don’t suppose you’ve the setting acceptable for a warm-water tank, one in all these chilly water fish species could be the right selection for you. Not solely are they simple to take care of, however they provide attractive appearances and nice demeanor that may rapidly make them the brand new focal factors of your front room – or wherever you select to put your versatile chilly water tank.

Leave a Comment