Small and slow beats big and occasional
For a ghost shrimp tank, plan on replacing about 15 to 20 percent of the water once a week. Shrimp carry a light waste load individually, but they are acutely sensitive to ammonia and to abrupt changes in the dissolved minerals their shells depend on. A modest weekly change removes accumulating waste while keeping the water's character recognisably the same. In a shrimp-only tank with live plants, that rhythm is usually ample; shrimp kept alongside messy fish may need the same small change done a little more attentively, with extra care around feeding leftovers.
Moulting is the reason for all this caution
A ghost shrimp grows by shedding its old shell and hardening a new one, and during that window it is soft, hidden, and vulnerable. Sudden changes in temperature or mineral content can force an unprepared moult or interrupt one already underway, which is often fatal. Stable water lets shrimp moult on their own schedule and reappear a day or two later slightly larger. You may find empty, glassy shells on the gravel after a successful moult — leave them for a while, as shrimp often eat the shell to reclaim its minerals.
The drip-back method, step by step
Siphon out the old water gently, taking care not to vacuum up baby shrimp, which are nearly invisible against pale gravel; checking the bucket before you tip it away saves lives. Prepare treated replacement water at the tank's temperature, then return it slowly — a knotted airline tube dripping into the tank over an hour or so is ideal, though a slow jug-by-jug refill also works. Never top off a shrimp tank with untreated water straight from the tap to compensate for a skipped change, and keep aerosols, hand lotions, and flea treatments on dogs and cats away from open shrimp tanks.
Trouble signs specific to shrimp
A shrimp that turns milky white inside its body, lies on its side flicking its legs, or dies shortly after a water change points to a chemistry shock or contaminant rather than old age. Several shrimp clustering at the surface can signal low oxygen or an ammonia spike from an unseen dead tankmate. Act by testing the water, adding aeration, and making a further small change with carefully matched water; if losses continue, seek advice from an aquatic specialist and mention every product recently used near the tank, since shrimp react to substances fish tolerate easily.
Berried females — those carrying a fan of greenish eggs beneath the tail — are the clearest reason to keep the ghost shrimp routine unhurried. A sudden chemistry swing during carrying or just after the eggs hatch can cost an entire brood of nearly invisible larvae. Keep the tank's routine boringly identical through those weeks, feed lightly so leftovers never spike ammonia, and postpone any deep substrate cleaning until the young shrimp are large enough to see and avoid.
Recording the details shrimp keeping depends on
With shrimp, the useful record is not just that water was changed, but how much and how slowly — details worth jotting down each week so a helper repeats the gentle method rather than improvising a fast one. KinsLe's Care Teams feature can assign that weekly shrimp change to a specific person and log its completion with a timestamp, keeping the careful routine intact even when the usual keeper is away.