Checking a school, not chasing individuals
A Norman's lampeye does not need scheduled veterinary checkups. This small killifish lives as a loose school near the surface, and chasing one around a tank with a net stresses the entire group while telling you little about the fish you caught. Like most small aquarium fish, it is assessed best where it lives, by someone who knows how the school normally looks and behaves.
The routine, then, is regular observation anchored by a feature this species conveniently provides: the vivid blue ring around the eye that gives the lampeye its name. A tank of active lampeyes sparkles with those blue points moving together, and a fish that dulls, separates, or stops rising to feed stands out against that lively background.
Daily signs in a lampeye school
A healthy school cruises the upper water, picks at small floating foods together, and keeps bodies gently rounded rather than pinched behind the head. Males may show slightly extended fins as they jostle, and the group should scatter and regroup easily when you approach, rather than sitting listless at the surface film.
Keep up the practical checks built for this fish. The lid must be tight and gaps sealed, because lampeyes jump, especially when startled or when water quality slips. Test the water regularly and keep conditions stable and moderately warm, and notice whether everyone still comes up at feeding, since the smallest school members are the first to be outcompeted and the first to thin down.
Spots, a shimmying swimming motion, clamped fins, or a fish resting apart at the surface are individual warnings; the whole school gasping or hanging at the top is a system warning that starts with immediate water testing. In a settled tank you may also spot fine eggs scattered among plants and tiny fry near the surface film, and that quiet evidence of spawning is another useful sign that the school is content.
When an aquatic vet should hear about your lampeyes
Contact an aquatic veterinarian when several lampeyes show the same signs, when condition keeps slipping in clean, stable water, or when unexplained losses begin in a group that had been settled. School-wide patterns are where a vet's help counts most for fish this small, and acting while most of the group still looks well gives that advice the best chance of working.
Send recent water results, group size, feeding details, recent additions, and video of the school's behaviour. Expect guidance based on that evidence, with treatment of the tank as a whole discussed where needed, rather than a request to bag and deliver a single two-centimetre fish.
Habits that keep a lampeye school settled
Feed little and often with foods small enough for their mouths, keep gentle surface movement without a current that exhausts them, and preserve stable conditions with modest, regular water changes. Quarantine or at least closely watch new arrivals before they join the school, and record arrivals, losses, and any whole-tank treatment as they happen.
Because your memory of last month's school is unreliable, keep those group notes, test results, and short videos together in KinsLe's Pet Passport, creating a ready-made history an aquatic vet can review if the school ever needs one.