Young Cherry Shrimp Live on Biofilm Plus Crumbs
A young cherry shrimp spends its day picking at biofilm — the microscopic film coating plants, wood, and glass — and that grazing is its main meal pattern. Juveniles and tiny shrimplets need only minute supplemental amounts: a crumb of powdered food scattered across plant surfaces where they shelter, offered most days. Because young shrimp moult frequently as they grow, a tank with established plants and surfaces matters more than generous portions, and heavy feeding at this stage mostly clouds the water they are trying to grow in. If shrimplets are visible grazing steadily and females are moulting cleanly, the young stage is fed correctly. Newly set-up tanks are the exception, since thin biofilm there may need slightly more supplemental food until surfaces mature.
Adult Colonies Need Measured Food Every Day or Two
An adult cherry shrimp colony grazes the same biofilm but in numbers that strip it faster, so regular supplemental feeding becomes necessary. A small portion in a feeding dish every day or two — removed if it is still sitting there after two or three hours — suits most established colonies, alternating plant-based wafers, blanched vegetable pieces, and protein foods across the week. Breeding females carrying eggs benefit from that protein share, which supports the steady egg production a healthy colony shows. Judge the portion by the dish: food mobbed and gone within the hour means the colony can take a little more, while food ignored while shrimp graze the plants instead means the tank is already providing plenty. Colony numbers change fast, so review the portion monthly rather than feeding a growing colony on a new keeper's original pinch.
Older Shrimp Graze Softly and Compete Poorly
A senior cherry shrimp — recognisable by larger size, deeper colour, and slower, less frantic movement — feeds more deliberately and loses out when a crowd of juveniles swarms a dish. Older individuals do best when some food is placed in quiet corners and among mosses where they rest, rather than all of it in one contested spot. Soft, easily picked-at foods suit ageing shrimp better than hard pellets they must work at while younger shrimp shoulder in. Because a single old shrimp eats very little, its stage is really about access, not quantity. Watch that the big old females still feed daily and moult successfully; an elderly shrimp that stops grazing entirely, hides constantly, or fails a moult while the colony thrives is at the end of its natural span, though persistent colony-wide moult problems point instead to water conditions worth checking.
Scale Portions With the Colony, Not the Calendar
Cherry shrimp portions should be adjusted against colony size and grazing behaviour rather than fixed birthdays, since individuals of every age live side by side. When berried females and shrimplets multiply, raise the supplemental portion in small steps, checking the dish after two hours each time until the amount that is just cleared is found. When numbers fall — after shrimp are sold, moved, or lost — cut back promptly, because food sized for a hundred shrimp will foul a tank holding thirty. After any big change, watch the water and the shrimp's behaviour for a week: active grazing and clear water confirm the new portion, while shrimp clustered at the surface or sudden deaths mean the water, not the menu, needs urgent attention. This feedback loop, repeated monthly, is the whole art of feeding a mixed-age colony well.
A Shared Feeding Note Protects a Shrimp Colony
Cherry shrimp suffer more from kind overfeeding by several people than from any single keeper's mistake, because each feeder assumes the colony is hungry. A brief shared note — last feeding, what was given, and when the dish should be checked — keeps total food honest. Keeping that note in KinsLe through Care Teams lets everyone tending your cherry shrimp see what the colony has already eaten, so portions stay matched to its real size and age mix.