Hossain

How many tetras should be kept together? Six of one species is the floor, and research shows why bigger groups mean calmer, better-feeding fish.

20 gallon tank stocking ideas planned by water layer and shared temperature, with sourced adult sizes and lifespans, so the extra room goes to the fish.

10 gallon tank stocking ideas based on adult fish size, not store labels. Three honest setups, the fish to skip, and why a small tank needs margin.

Best beginner freshwater fish, judged honestly: what makes a fish forgiving, three sourced examples, and the shop labels that mislead new keepers.

How many fish in a tank is right? Learn why the inch-per-gallon rule misleads and how to judge stocking by fish size, behavior and your water tests.

A betta bubble nest is normal behavior, not a warning. Learn to tell a nest from foam, what flaring means, and which signs really need a fish vet.

Male vs female betta: how to tell them apart, how each behaves, and why a female sorority is harder than it looks for a first tank.

Betta fin rot, tail biting or a torn fin? Learn to read the edges, find the cause in the tank, and know when to call an aquatic vet.

Betta laying at bottom of tank? Learn how to tell normal resting from a warning sign, what to check first, and when to call an aquatic vet, calmly.

Betta not eating? Work through temperature, water tests, recent changes and the food itself in order, and learn which signs mean it is time for a fish vet.