🦐 How to Set Up a Freshwater Shrimp Tank

Dwarf shrimp like cherry shrimp are among the most fascinating low-maintenance pets you can keep in a small space, but the rule that matters most is that their tank must be fully cycled and stable before they ever go in. Shrimp are sensitive little creatures, and a clean, settled tank is the difference between a thriving colony and a struggling one. Get the water right and you will be rewarded with a busy, colorful colony that grazes, breeds, and quietly does its own thing.

Tank size

You do not need a big setup. A small nano tank of even 5-10 gallons is plenty for a whole colony of dwarf shrimp. In fact, a modest tank that stays stable is easier to manage than a large one you struggle to keep balanced. Cherry shrimp are hardy beginner shrimp, and in stable water they breed readily. Watching a handful of shrimp grow into a bustling colony is half the fun.

Cycle first, keep it stable

Because shrimp are so sensitive, the tank must be cycled and stable before they go in, with no ammonia spikes. Once shrimp are living there, keep the water parameters steady and avoid big swings, since sudden changes stress them more than almost anything else. That is why you should change water slowly and in small amounts rather than doing large, sudden water changes that can shock the colony.

Filter and plants

Use a sponge filter. It keeps the water clean without sucking up shrimp or their tiny babies, and as a bonus it grows a layer of biofilm that shrimp love to graze on. Fill the tank with plenty of live plants and moss, which give shrimp cover to feel safe, more surfaces to graze, and hiding spots for babies. A well-planted shrimp tank almost runs itself.

Feeding

Shrimp mostly feed themselves by grazing biofilm and algae, but you can offer a little extra: a small pinch of shrimp food or algae pellets and the occasional piece of blanched vegetable. Feed sparingly, only what they finish in a couple of hours, since leftover food fouls the very water they depend on. A lightly fed, well-planted tank keeps shrimp healthiest.

Tankmates and the two big rules

Shrimp are peaceful and are best kept with tiny fish or no fish at all, because many fish happily eat baby shrimp. Peaceful aquatic snails make great companions. Beyond that, remember the two big rules: never use products containing copper, since many fish medications do and copper is toxic to shrimp; and always change water slowly and gently. Follow those two and you have avoided the mistakes that trip up most beginners.

Quick setup checklist

• Fully cycled, stable nano tank (5-10 gallons is plenty)
• Sponge filter that will not suck up shrimp or babies
• Lots of live plants and moss for cover and grazing
• Light feeding of shrimp or algae food plus the odd blanched veggie
• No copper, ever
• Small, slow water changes; tiny or no fish as tankmates

Shrimp make a wonderful entry into the hobby, so if you want more calm, easy companions, browse our low-maintenance pets guide, or take our free pet quiz to find your best match.

🛒 Recommended supplies

Hand-picked gear for this guide. Affiliate links — we may earn a commission. The $/$$/$$$ badges are a rough budget guide, not live prices.

🧽 Cleaning & maintenance

The main job is regular water changes. Each week, use a gravel vacuum (siphon) to remove about 20–30% of the water along with waste from the bottom, then refill with fresh water treated with a dechlorinator so it is safe. Scrape algae off the glass as needed and rinse the filter media in old tank water — never tap water, which kills the good bacteria. Test the water so you can catch problems early. Never do a full strip-down that wipes out the filter bacteria; steady partial maintenance keeps the water stable and your shrimp healthy.

Cleaning supplies for this habitat. Affiliate links — we may earn a commission. The $/$$/$$$ badges are a rough budget guide, not live prices.

❓ Common questions