Red Cherry Shrimp Stocking Guide: Tank Size, Tank Mates & Where to Buy

ByThe Answerlode Editorial Team

How Many Red Cherry Shrimp Per Gallon?

A good starting rule is 2 to 5 shrimp per gallon of tank water, though many experienced keepers stock 5 to 10 per gallon in established tanks with stable water conditions. For your first batch, starting with 10 to 20 shrimp gives them room to establish territories, acclimate without stress, and begin breeding naturally.

In a 5-gallon starter tank, 10 to 15 shrimp works well. For a 10-gallon, aim for 20 to 30. The key is that cherry shrimp have a low bioload relative to their size—each individual produces minimal waste—so they can tolerate denser stocking than most other aquarium animals, especially compared to fish. If you’re planning a species-only tank (shrimp alone, no fish), you can go even higher.

Do Red Cherry Shrimp Really Clean Your Tank?

Yes, but with limits. Cherry shrimp spend their entire day grazing on biofilm, algae, and decaying plant matter. They’re particularly good at consuming microscopic algae before it develops into a visible bloom, which means they excel at prevention. A group of 5 to 10 is usually enough to manage algae in tanks under 20 gallons.

However, they won’t eradicate large amounts of established algae. Think of them as a maintenance crew, not a replacement for regular tank care. They help slow algae growth and reduce detritus, but you’ll still need to do water changes, clean filters, and manage light cycles yourself. Overfeeding is a common mistake—if you supplement their diet, leftover food spoils the water faster than the shrimp can process it.

Which Fish Can Live With Cherry Shrimp?

Cherry shrimp are small and defenseless, making them a tempting snack for many fish. Safe companions include nano fish species like ember tetras, chili rasboras, and celestial pearl danios—small, peaceful fish that focus on micro-sized foods and ignore shrimp. Otocinclus catfish are another good choice: they’re gentle algae eaters roughly the same size as adult shrimp. White Cloud Mountain Minnows have a reputation for leaving shrimp alone even when eggs are present.

Fish to avoid include bettas, dwarf cichlids, dwarf gouramis, pea puffers, rainbowfish, and any larger fish like goldfish or plecos. Aggressive or carnivorous fish, even small ones, view shrimp as food. If you want maximum survival and breeding success, a species-only tank with shrimp alone is your safest bet. If you do mix shrimp with fish, provide plenty of dense plants, driftwood, and caves for hiding spots, especially for juveniles.

Starting Your First Cherry Shrimp Tank

Begin with a minimum 5-gallon tank, though 10 gallons or larger provides better water stability. Cherry shrimp prefer temperatures between 72 and 78 degrees Fahrenheit and a pH around 7.0 to 7.8, making them tolerant of most freshwater setups. They need plenty of surface area and hiding spaces—live plants are ideal for this. Java moss, anubias, and marimo moss balls all provide foraging grounds and nursery spaces for shrimplets.

Feed them 2 to 3 times per week with a high-quality shrimp pellet or algae-based food. They supplement this with whatever algae and biofilm exists in the tank, so overfeeding quickly degrades water quality. In a planted tank with good biofilm, you might feed only once or twice weekly.

Where to Buy Red Cherry Shrimp

Several specialized online retailers ship cherry shrimp with live arrival guarantees, which is important since shrimp can be fragile in transit. Options include dedicated shrimp breeders like The Shrimp Farm and Flip Aquatics, which offer quarantined stock backed by guarantees. Aqua Huna offers overnight FedEx shipping if you want faster delivery. General aquarium retailers like Splashy Fish and CK Fishworld also stock cherry shrimp with multi-day quarantine periods before shipping.

Larger retailers like Petco and Amazon carry cherry shrimp, though specialized breeders typically have healthier, better-colored stock and more thorough quarantine protocols. When ordering online, look for “Grade A” or “Grade AA” classifications—these indicate superior color and size. Always confirm the live arrival guarantee before purchasing.

Common Mistakes to Avoid

Overstocking relative to tank stability is the biggest error. Start conservative and observe water parameters for a month before adding more. Overfeeding is the second—uneaten food rots and crashes water quality faster than shrimp can process it. Avoid sudden water changes or temperature swings; shrimp are sensitive to rapid shifts. Finally, don’t rely solely on shrimp for algae control in a heavily lit tank with excess nutrients—address lighting and fertilization first, then add shrimp for maintenance.

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