Can Ghost Shrimp Live With Cherry Shrimp?: A Comprehensive Guide to Coexistence
The short answer is mostly yes, but the success of keeping ghost shrimp and cherry shrimp together depends on several factors. Careful observation and proper tank setup are essential to prevent issues.
Understanding the Basics: Ghost Shrimp vs. Cherry Shrimp
Before diving into compatibility, it’s crucial to understand the fundamental differences between these two shrimp species. While both are popular choices for freshwater aquariums, their needs and behaviors vary significantly.
Ghost Shrimp ( Palaemonetes paludosus ): These are often sold as feeder shrimp, used to control algae and leftover food. They are generally clear, hence the name. However, some sellers may misidentify Macrobrachium species as ghost shrimp, which are far more aggressive. True ghost shrimp are relatively peaceful scavengers.
Cherry Shrimp ( Neocaridina davidi ): Known for their vibrant red coloration, cherry shrimp are popular for their beauty and ease of care. They are small, peaceful herbivores and detritivores. They are more sensitive to water parameters than ghost shrimp.
Benefits of Keeping Ghost Shrimp and Cherry Shrimp Together
Combining these shrimp species in a single tank can offer several advantages, assuming the correct conditions are met.
- Improved Tank Cleanliness: Ghost shrimp are excellent scavengers, consuming uneaten food and detritus that cherry shrimp might miss. This helps maintain water quality and reduce the risk of algae blooms.
- Natural Algae Control: Ghost shrimp consume some algae, contributing to a cleaner and healthier aquarium environment.
- Biological Diversity: A mixed-species tank can create a more diverse and interesting ecosystem.
- Affordable Tank Mates: Both species are relatively inexpensive, making them an accessible option for beginner aquarists.
Potential Challenges and Mitigation Strategies
Despite the potential benefits, cohabitating ghost shrimp and cherry shrimp can present certain challenges that require careful management.
- Aggression (The Macrobrachium Problem): As mentioned earlier, some Macrobrachium species are mistakenly sold as ghost shrimp. These are predatory and will prey on cherry shrimp. Always carefully examine ghost shrimp before purchasing. Look for long claws and significantly larger size relative to true Palaemonetes paludosus.
- Competition for Food: Although ghost shrimp are primarily scavengers, they may compete with cherry shrimp for food, especially if resources are scarce. Ensure adequate feeding for both species.
- Water Parameter Sensitivity: Cherry shrimp are more sensitive to water quality than ghost shrimp. Maintaining stable and appropriate water parameters is crucial for the health of both species. This includes temperature (72-78°F), pH (6.5-8.0), and ammonia/nitrite levels (zero).
- Overpopulation: Both species breed readily in suitable conditions. Overpopulation can lead to stress, competition, and poor water quality. Regular monitoring and occasional culling may be necessary.
- Molting Vulnerability: Shrimp are vulnerable when molting. Provide plenty of hiding places with dense vegetation to protect them during this time.
Ideal Tank Setup for Cohabitation
A well-designed tank setup is essential for the successful cohabitation of ghost shrimp and cherry shrimp.
- Tank Size: A minimum of 10 gallons is recommended, with larger tanks being preferable.
- Substrate: Inert substrates like gravel or sand are suitable. Shrimp benefit from a substrate that promotes beneficial bacteria growth.
- Filtration: A gentle filter is essential. Sponge filters are ideal as they provide biological filtration and won’t suck up shrimp.
- Heating and Lighting: Provide appropriate heating to maintain a stable temperature. Standard aquarium lighting is sufficient.
- Plants: Live plants are crucial. They provide hiding places, oxygenate the water, and serve as a food source for cherry shrimp. Examples include:
- Java Moss
- Anubias
- Hornwort
- Decorations: Driftwood, rocks, and other decorations provide additional hiding places and create a more natural environment.
Identifying True Ghost Shrimp
Distinguishing true Palaemonetes paludosus ghost shrimp from potentially aggressive Macrobrachium species is critical.
| Feature | Palaemonetes paludosus (True Ghost Shrimp) | Macrobrachium Species (Aggressive Imposters) |
|---|---|---|
| Size | Generally smaller (up to 1.5 inches) | Can grow much larger (over 2 inches) |
| Claws | Small and delicate | Significantly larger and more prominent |
| Appearance | Mostly transparent, often with a few spots | Can have more color and distinct markings |
| Behavior | Peaceful scavenger | More aggressive, may actively hunt other shrimp |
Acclimation Process
Proper acclimation is crucial for introducing new shrimp to an established tank.
- Float the bag: Float the bag containing the shrimp in the tank for 15-30 minutes to equalize the temperature.
- Drip Acclimation: Slowly drip water from the tank into the bag over a period of 1-2 hours. This gradually acclimates the shrimp to the tank’s water parameters.
- Release Carefully: Gently release the shrimp into the tank, avoiding sudden changes in water chemistry.
Feeding Strategies
Providing a balanced diet is crucial for the health and well-being of both ghost shrimp and cherry shrimp.
- Supplemental Feeding: Offer small amounts of high-quality shrimp food, such as shrimp pellets or flakes.
- Natural Food Sources: Encourage algae growth on decorations and tank walls to provide a natural food source.
- Vegetables: Offer blanched vegetables like zucchini or spinach as a supplementary food source.
- Avoid Overfeeding: Overfeeding can lead to poor water quality and promote algae growth. Feed sparingly and observe how much food the shrimp consume.
Monitoring and Maintenance
Regular monitoring and maintenance are essential for a thriving shrimp tank.
- Water Changes: Perform regular water changes (10-20% weekly) to maintain water quality.
- Water Parameter Testing: Regularly test water parameters (ammonia, nitrite, nitrate, pH) to ensure they are within acceptable ranges.
- Observation: Observe the shrimp for signs of illness or stress, such as lethargy, loss of color, or unusual behavior.
- Algae Control: Manually remove excess algae to prevent it from overtaking the tank.
Frequently Asked Questions (FAQs)
Will ghost shrimp eat baby cherry shrimp?
Generally, true ghost shrimp are opportunistic feeders and may occasionally prey on very small baby cherry shrimp, especially if food is scarce. However, it is not their primary source of food. Providing ample hiding places and food can significantly reduce this risk. Macrobrachium species will actively hunt and eat baby and adult cherry shrimp.
How can I tell if my ghost shrimp are actually Macrobrachium?
Look at their size, claw size, and behavior. Macrobrachium are significantly larger, possess large, prominent claws, and exhibit more aggressive behavior than Palaemonetes paludosus. Consult online images and videos to compare physical characteristics.
What water parameters are ideal for both species?
Both ghost shrimp and cherry shrimp thrive in water temperatures between 72-78°F, a pH of 6.5-8.0, and zero ammonia and nitrite. Keep nitrates below 20 ppm. Consistent parameters are more important than hitting perfect numbers.
How often should I feed my shrimp?
Feed your shrimp sparingly, every other day. They primarily graze on algae and detritus. Overfeeding can lead to poor water quality. Observe their feeding habits to determine the appropriate amount.
What are the signs of a stressed shrimp?
Signs of stress include lethargy, loss of color, erratic swimming, and refusing to eat. Check water parameters immediately if you observe these symptoms.
What is the best filter for a shrimp tank?
Sponge filters are the best option because they are gentle, provide biological filtration, and prevent shrimp from being sucked into the filter intake.
How do I prevent overpopulation in my shrimp tank?
Regularly monitor the shrimp population. You can reduce breeding by lowering the temperature slightly or reducing feeding. Culling excess shrimp is also an option.
Can I use tap water in my shrimp tank?
Tap water can be used, but it must be dechlorinated first. Use a water conditioner specifically designed to remove chlorine and chloramine. Test your tap water for harmful contaminants.
How often should I perform water changes?
Perform 10-20% water changes weekly to maintain water quality and remove accumulated nitrates.
What plants are best for shrimp tanks?
Java moss, Anubias, and Hornwort are excellent choices. They provide hiding places, oxygenate the water, and serve as a food source for cherry shrimp.
Why are my shrimp hiding all the time?
Shrimp often hide after being introduced to a new tank or during molting. Provide plenty of hiding places with plants and decorations. If they continue to hide, check water parameters for issues.
Are ghost shrimp and cherry shrimp compatible with other aquarium inhabitants?
Both shrimp species are relatively peaceful and can coexist with small, non-aggressive fish, such as Otocinclus catfish or small tetras. Avoid keeping them with larger, predatory fish.