Will Bumblebee Goby Eat Cherry Shrimp? A Comprehensive Guide
The short answer: Yes, bumblebee gobies will likely eat cherry shrimp. Bumblebee gobies are opportunistic predators, and cherry shrimp, especially smaller ones, represent an easy meal.
Introduction: The Predatory Nature of Bumblebee Gobies
The allure of a vibrant community aquarium, teeming with colorful fish and graceful invertebrates, is a powerful one for many aquarists. However, carefully considering the compatibility of different species is crucial for success. One frequently asked question involves the interaction between bumblebee gobies (Brachygobius doriae or Brachygobius xanthozonus, often sold interchangeably) and cherry shrimp (Neocaridina davidi). These diminutive, brackish-water fish, with their striking yellow and black banding, are often mistakenly thought of as peaceful additions. This is a misconception, as Will bumblebee goby eat cherry shrimp? is almost always answered with a resounding yes, particularly when shrimp are smaller than the goby’s mouth.
Understanding Bumblebee Gobies: Predators in Miniature
Bumblebee gobies, despite their small size (typically reaching only about 1 inch), are predators. In their natural brackish-water environments in Southeast Asia, they feed on small invertebrates, crustaceans, and insects. Their mouths are surprisingly large relative to their body size, allowing them to consume surprisingly large prey. Their hunting style involves ambushing unsuspecting prey, making them efficient hunters within the confines of an aquarium.
The Allure and Vulnerability of Cherry Shrimp
Cherry shrimp are a popular choice for freshwater aquariums due to their vibrant red color, ease of care, and algae-eating abilities. They are relatively small, with adults reaching approximately 1.5 inches in length, and their defenseless nature makes them easy targets for even small predators. They are also relatively slow compared to fish like gobies, decreasing the likelihood of escape.
The Dynamics of the Bumblebee Goby and Cherry Shrimp Encounter
Will bumblebee goby eat cherry shrimp? The probability increases significantly with the size disparity between the fish and the shrimp. Baby cherry shrimp, also known as shrimplets, are especially vulnerable and will almost certainly be eaten. Even adult cherry shrimp are at risk, especially if the goby is particularly aggressive or the shrimp are stressed or weakened.
Habitat and Water Parameter Considerations
While cherry shrimp thrive in freshwater, bumblebee gobies ideally require brackish water – water with a salt content higher than freshwater but lower than seawater. This fundamental difference in habitat requirements presents another challenge for keeping these species together successfully. Placing cherry shrimp in brackish water, even at low salinity, will significantly shorten their lifespan.
Mitigating the Risk (If You Insist on Trying)
While keeping bumblebee gobies and cherry shrimp together is generally discouraged, some aquarists attempt to do so. Here’s how to try and mitigate the risk (though success is not guaranteed):
- Provide ample hiding places: Dense vegetation (Java moss, Cabomba), caves, and driftwood can provide shrimp with refuge.
- Maintain a large tank: A larger tank (20 gallons or more) provides more space and opportunities for shrimp to escape predation.
- Overpopulate the shrimp colony: Starting with a large number of cherry shrimp might allow some to survive predation and establish a colony. This requires a very stable, mature tank.
- Focus on larger cherry shrimp: Choose only adult cherry shrimp, as shrimplets are practically guaranteed to be eaten.
- Densely planted tank with line of sight block: Use plants like Water Sprite to block line of sight of the goby. This also provides cover for the shrimp.
Alternatives to Cherry Shrimp: A More Peaceful Community
If you are seeking invertebrates to keep with bumblebee gobies, consider options less palatable or accessible. Snails, such as Nerite snails or Mystery snails, are usually too large for bumblebee gobies to consume. However, bear in mind that bumblebee gobies will also pick on small invertebrates such as copepods and daphnia. Consider a species only tank if you are wanting to house either cherry shrimp or bumblebee gobies.
Common Mistakes: Misconceptions and Pitfalls
- Assuming Bumblebee Gobies are Peaceful: This is a common and costly mistake. Their small size belies their predatory nature.
- Ignoring Water Parameter Requirements: Failing to provide bumblebee gobies with appropriate brackish water will compromise their health. Keeping Cherry Shrimp in brackish water will kill them.
- Underestimating the Goby’s Hunting Prowess: Even seemingly slow-moving bumblebee gobies can be surprisingly effective hunters.
- Not Providing Enough Hiding Places: Inadequate hiding places give shrimp little chance of survival.
Frequently Asked Questions
Will a single bumblebee goby decimate a colony of cherry shrimp?
Yes, a single bumblebee goby can significantly reduce a cherry shrimp population, especially if the shrimp are small or the tank is sparsely decorated. The goby will actively hunt and consume any shrimp it can catch.
Are some bumblebee gobies more aggressive than others?
Yes, individual personalities vary, and some bumblebee gobies may be more aggressive hunters than others. It is generally impossible to predict the temperament of a particular fish before introducing it to the tank.
What is the ideal tank size for keeping bumblebee gobies with cherry shrimp (assuming I am attempting this risky combination)?
At a minimum, a 20-gallon tank is recommended, but larger is always better. This provides more space for shrimp to escape and establish breeding colonies, though success is still not guaranteed. A 20-gallon is also recommended to maintain stable water parameters in a brackish set up.
Will bumblebee gobies eat ghost shrimp?
Yes, bumblebee gobies will also eat ghost shrimp, although ghost shrimp tend to be slightly larger and more agile than cherry shrimp. Still, they will eventually become food for a hungry goby.
How can I tell if my bumblebee goby is eating my cherry shrimp?
You might observe a decrease in the shrimp population without any other apparent cause of death. You might also witness the goby actively hunting or observe uneaten shrimp carcasses if the goby has killed more shrimp than it can immediately consume.
Can I keep bumblebee gobies with Amano shrimp?
Amano shrimp are larger and more robust than cherry shrimp, and less likely to be eaten by bumblebee gobies. However, there is still a risk, especially if the Amano shrimp is molting or weakened.
Do bumblebee gobies eat snails?
Generally, no, bumblebee gobies do not eat snails larger than small baby snails. They may pick at snails, but they lack the ability to crack their shells or consume them whole. But baby snails will absolutely be considered a food source by the bumblebee goby.
Are there any fish that are truly safe to keep with cherry shrimp?
Small, peaceful fish such as Otocinclus catfish, Pygmy Corydoras, and certain types of nano rasboras are generally considered safe with adult cherry shrimp. However, even these fish might occasionally predate on shrimplets.
How can I create a shrimp-safe environment in my aquarium?
A densely planted tank with plenty of hiding places is crucial. Use plants like Java moss, Cabomba, and driftwood to provide refuge. Also, ensure excellent water quality and avoid sudden changes in parameters.
What are the ideal water parameters for cherry shrimp?
Cherry shrimp thrive in stable, clean freshwater. Aim for a temperature of 65-80°F (18-27°C), a pH of 6.5-8.0, and minimal ammonia and nitrite.
What is the lifespan of a cherry shrimp?
Cherry shrimp typically live for about 1-2 years under optimal conditions.
What should I feed bumblebee gobies?
Bumblebee gobies require a diet of small, meaty foods. Frozen or live bloodworms, brine shrimp, and daphnia are excellent choices. They may also accept high-quality flake or pellet food, but live or frozen foods are preferred.