A shoal folder with cool water at the front
A white cloud mountain minnow folder should open with the fact most likely to be mishandled: this shoal lives in cool water. Put a front page stating the tank's usual temperature range, whether a heater is absent or set only as a safeguard, and how flow is provided. Helpers raised on tropical tanks can do real harm by helpfully warming a white cloud setup, so the filing system's first job is preventing that mistake. Behind the front page, keep the standard sections for purchase, equipment, water, feeding and behaviour, labelled plainly on dividers.
Purchase and equipment sections for minnows
Purchase and equipment sections in a minnow folder are short but worth doing properly. The purchase section holds a dated record for each group added, with numbers, because white clouds are bought as shoals and later top-ups are easily forgotten. The equipment section holds the filter details, any powerhead or spray bar providing current, lighting and the thermometer you trust. Note the filter outlet arrangement that creates the flow the shoal uses, since replacing a filter without that note can quietly turn a stream-style tank into still water and change the fish's behaviour for reasons nobody filed.
Water sheets that respect a hardy fish
Water sheets for white cloud mountain minnows should be filed in date order and actually reviewed, because hardiness tempts owners to file and forget. Keep temperature on every sheet, alongside pH, ammonia, nitrite and nitrate, and file a dated note when room conditions change seasonally, such as a warm spell heating an unheated tank. That seasonal page explains a summer of restless schooling better than any single test result. Move older sheets to the back of the section in order rather than discarding them, because the long temperature record is the most distinctive part of this species' paperwork.
Feeding and behaviour pages for the shoal
Feeding and behaviour pages give a white cloud folder its everyday usefulness. The feeding page names the small foods in use, the amount offered and where in the current the shoal prefers to feed, so a helper can reproduce a normal mealtime. Behaviour pages describe the shoal's ordinary pattern in dated entries: loose schooling in open water, males sparring briefly near plants, and colour looking bright at feeding. Add a new page when the group bunches tightly for days or stops rising for food. Filed in order, those pages turn a vague sense that the minnows seem quiet into a checkable record.
A small folder, properly protected
A small folder still deserves protection, because a white cloud shoal's history is as unrecoverable as any other once lost. Scan or photograph the front cool-water page, the purchase record, equipment list and current feeding page, and keep the paper folder with the tank's food and test kit. When the shoal changes keeper, the folder explains the setup faster than any conversation. Storing the copied pages in KinsLe via Pet Passport gives the minnow shoal a tidy digital file that mirrors the paper one and travels with the tank.