A shrimp-only tank is one of the most rewarding small setups in the hobby, and one of the least forgiving of shortcuts. Shrimp graze constantly, breed readily and live close to their water, so the build rewards patience: everything about the tank should be chosen for gentleness and stability long before the first animal arrives.
Pick the Tank and the Shrimp With Beginners in Mind
A modest tank in the small-to-medium range is ideal — big enough that temperature and water chemistry drift slowly, small enough to sit on a desk or shelf. Match it with cherry shrimp, the hardy red Neocaridina that tolerate the widest range of ordinary tap-water conditions and breed freely once settled. Their more delicate crystal cousins demand specially softened, buffered water, which is a fine second project and a frustrating first one. Plan the colony around one species and one colour line, since mixed colours interbreed back towards plain wild-type babies.
Filter With a Sponge, and Cycle Before Stocking
Choose an air-driven sponge filter over anything with an exposed intake. Adult shrimp graze on the sponge itself, newborn shrimplets are small enough to be drawn into powered intakes, and the sponge's gentle flow suits animals that live by picking over surfaces. Set the tank up completely — substrate, plants, water, filter running — and then wait for the filter to mature through a full cycle before ordering shrimp. Shrimp carry very little waste, but they are acutely sensitive to ammonia and to sudden change, so a cycled, settled tank that has run for some weeks, growing a film of algae and biofilm on its surfaces, is the welcome they actually need.
Substrate, Plants and Grazing Surfaces
For cherry shrimp, plain inert sand or fine gravel is the simplest base: it changes nothing in the water, which keeps conditions predictable. Cover as much of it as you can with grazing territory — Java moss tied to wood, leafy plants, a smooth stone or two, and a dried leaf such as an Indian almond leaf resting on the bottom. Shrimp spend their whole day picking microscopic food from surfaces, and a planted, slightly shaggy tank feeds them far better than a bare, spotless one. A lid earns its place here too: shrimp climb, especially at night and especially up filter corners.
Add the Shrimp Slowly, Then Change Little
When the shrimp arrive, acclimate them by dripping: float the bag, then add tank water a little at a time over an hour or more so temperature and chemistry equalise gradually, and tip them in gently away from bright light. Feed lightly — a shrimp colony in a planted tank finds much of its own food — and keep water changes small and matched in temperature, since large swings are the classic trigger for failed moults. Within a few months, if conditions have stayed boring and stable, females will carry eggs under their tails and the colony will begin growing itself.
A colony outlives its setup shopping list by years, so write the build down while it is fresh: which substrate went in, where the shrimp came from, what your tap water is like and what you feed. Keeping that record together in the colony's Pet Passport in KinsLe turns a pile of forgotten receipts into one packet you can hand to a sitter, a shop or a future you.