More than most small fish, a bumblebee goby's record should begin with water history, because these tiny banded gobies are sold from fresh and brackish setups alike and arrive with a past that decides how they should be kept. Get the keeping conditions written down before the bag is even opened, then build the log around individual identification, territory, and the feeding experiments that reveal what your particular gobies will actually accept. A group of fish barely an inch long needs paperwork out of proportion to its size, and keepers who start it on day one rarely regret it.
The shop's water, written down before you leave
Make the first entry in a bumblebee goby record while you are still thinking like a buyer, not an owner. Ask where the fish came from whether the shop keeps this species in fresh or brackish water, and record the answer verbatim alongside any salinity reading the staff can share and the temperature their tank runs at. Log how many gobies you bought and the tank they are entering, with its own temperature and test results, plus whether you plan to match the shop's conditions and adjust only gradually under advice.
Banding photographs and a map of tiny territories
Bumblebee gobies are individually recognisable if you look properly on day one. Photograph each fish from the side and note the banding: which bands are complete, which are broken, where spots replace stripes, because those patterns let you track individuals in a group that otherwise reads as identical yellow-and-black beads. Then sketch or describe the territory map as it forms over the first week: which shell, tube, or rock crevice each goby claims, who perches where at feeding time, and who gets chased from which corner. Gobies are territorial far beyond their size, and a written map turns squabbles into readable data, showing whether one fish is steadily losing ground and meals to the others.
The accepted-food list, built by experiment
Dedicate the centre of the bumblebee goby record to food, because many gobies ignore dry food entirely at first and an owner can waste a critical week offering what will never be eaten. Log every food you present, live, frozen, or prepared, in small dated entries: offered in the morning, taken eagerly, taken after hesitation, or left while the fish watched it drift. Record how you deliver food to the bottom near each territory, since a goby will not cross a rival's patch to chase a meal. Within a few weeks the log holds your group's true menu and the feeding order that gets every fish fed, which is exactly the information a sitter, a shop, or a future keeper most needs and least wants to rediscover by trial and error.
Colour, confidence, and the quiet warning signs
Keep short weekly notes on each identifiable goby's colour and confidence. A settled bumblebee goby shows crisp contrast, perches in the open, and defends its spot; a struggling one pales, hides through feeding, and surrenders territory. Record those shifts beside water checks, including salinity readings where your setup involves them, temperature, and any change in tankmates or layout. Note your threshold for seeking specialist aquatic advice, for instance a fish who has not been seen to eat for several days alongside fading bands, and file any guidance you receive with the entries that prompted it. Small fish decline quietly, and dated notes are often the only alarm they ever ring.
Started this way, the goby log captures conditions, identities, and appetites before any of them blur into assumption. KinsLe's Pet Passport gives those gobies a documented past that outlives your memory of the shop conversation, ready whenever a decision about their water or their future home comes up.