An entry built for an unheated tank
A white cloud log records the usual figures — water changed, ammonia, nitrite and nitrate — but its most important column is temperature, because a white cloud tank has no heater and its temperature is whatever the room gives it. Log the reading at every change and the source of the replacement water, since water drawn warm from a tap can lift a small cool tank noticeably in minutes. White clouds are hardy fish, but hardiness is about surviving conditions, not about enjoying sudden change. A temperature column kept across the year becomes a map of the tank's seasons, and the fish live by that map.
Watching the seasons through the log
Across a year, the white cloud log shows a slow wave: cool months with sluggish feeding, a warming spring when the males colour up and court in the plants, a hot spell in summer when the school goes quiet at midday. Note behaviour against temperature — spawning scatterings over fine plants, eggs found, fry appearing in the moss — because breeding in white clouds is temperature-led and the log proves the pattern. If summer heat pushes the tank high for weeks, the log documents it, along with whatever you did: a fan across the surface, a move to a cooler room, larger cool changes. Next summer, the record is a plan rather than a worry.
Test results in a lightly stocked, cool tank
White clouds are small and usually lightly stocked, so their test results often look serene — but serenity needs verifying, not assuming. Keep testing at every change and write the figures down, because a rising nitrate in a minnow tank usually means overfeeding, the one real risk with fish too small to look overfed. Note feeding amounts in plain terms and any week the school was fed by a substitute keeper, since holiday feeding is where small tanks quietly suffer. Filter notes belong here too: a gentle filter suits minnows, and any change to flow should be an entry, not a surprise the fish report later.
Moves, tubs and second homes go in the same log
White clouds are often moved — to a summer tub outdoors, a second tank, a pond for the warm months — and each move is a logging event. Record where the school went, how the water there tested and how the fish settled, so the year's record stays continuous across homes. A school that summers outside and winters in a tank has two sets of conditions, and only the log holds them together as one fish-keeping story. Photographs of each setup, filed with the entries, complete the picture for anyone taking over the school mid-season.
Keeping the school's whole year in one packet
A white cloud school's records are modest — a page of changes, tests and temperatures — but they are the difference between a keeper who knows the tank's rhythm and one who guesses at it. KinsLe's Pet Passport keeps those records together in one portable packet alongside the school's profile, so the log can be shown to a vet, handed to a sitter for a holiday, or passed on with the fish when the school finds a new home.