Shrimp graze almost constantly, so grazing itself tells you nothing. What separates a well-fed colony from a hungry one is the pattern of the grazing: where they work, how long they stay, and how they react when something new lands. Learn those three contrasts and a thirty-second look at the tank answers the question more reliably than any single feeding test.
Steady Picking in One Area
A contented shrimp works a patch. It picks steadily in one area, moving its small claws over a leaf surface, the bottom, or a piece of driftwood in constant, unhurried movements, and it stays with that patch for minutes at a time before drifting a short distance to the next. The work looks thorough rather than frantic, because the film and debris on that surface are actually feeding it. Across the tank the picture matches: individuals spread out at their own stations, each occupied, none hurrying.
A settled colony also shows itself. Shrimp of mixed sizes graze out in the open, including small juveniles working exposed leaves in daylight, because nothing in their recent experience says the open is dangerous or unrewarding. Females carrying eggs move and pick in the same unhurried way. When most of the colony you can see is settled, spread out, and working patches at this pace, the tank is providing well and grazing is what contentment looks like.
Wide Ranging and Instant Swarms
Hungry shrimp search, and searching has a different geography. Instead of holding patches, they range widely and restlessly, crossing open substrate, climbing the glass, and moving on quickly from surfaces that give them little. Picking at bare glass is a telling sign: a clean pane offers almost nothing, and shrimp working it steadily are usually short of richer pickings elsewhere. Filter sponges and outflow areas draw crowds for the same reason, since those surfaces collect what little food film the tank produces.
The sharpest test is what happens when food lands. A provided-for colony notices a pellet gradually, with a few shrimp arriving and others carrying on at their patches. A scarce-food colony swarms food instantly, piling onto a wafer or a blanched vegetable in a dense, jostling ball within moments, with latecomers climbing over the pile. That instant swarm, repeated at every offering, means the tank's natural growth is not covering the colony's needs and dedicated food should go in more regularly, in modest amounts the pile clears within a couple of hours.
Record the Pattern, Not Just the Feeding
One look can mislead, because a colony grazes quietly after a big feed and ranges before one. The trustworthy method is a short note at each visit: settled picking or restless ranging, glass-picking seen or not, swarm instant or gradual. Shared notes matter here because different household members look at the tank at different hours, and the pattern across a week is the real evidence. In Care Teams, KinsLe gives each feeder a place to attach that observation to the completed feed, timestamped, so the week's entries line up in order and the trend is visible to everyone rather than held in one person's memory.
Act on the trend, not the snapshot. A week of settled entries means hold your current feeding steady. Entries drifting toward ranging and glass-picking mean the colony has outgrown what the tank grows, so add dedicated food on more days and watch the notes swing back. Shrimp colonies grow, plants change, and stocking shifts, so the balance needs rechecking whenever the pattern turns. Your household's grazing observations, kept in KinsLe and shared through Care Teams, turn a subtle daily judgment into a record anyone can read at a glance.