Don't eat too much to fish
Food manufacturers recommend feeding three times a day. But if you have a new aquarium, this is often too much. If you are watching your water quality or getting a new aquarium, once a day is usually enough. You should only increase the feeding if you have a full quota of fish and your aquarium has been working without problems for several months. Ask the store where you buy to indicate how much they feed each of their fish, so you get a more accurate idea.
Don't make the aquarium too crowded
This is a really obvious mistake. Overcrowded aquariums suffer from many problems such as lack of oxygen, insufficient filtration and increased risk of disease. Growing fish may even be hindered due to lack of space, and it is possible that due to overcrowding, fish may die. Yours will be chewed. If you want more fish, the only answer is a bigger aquarium.
Make quality and authenticity in your aquarium
When choosing an aquarium, choose the right one. Spheres, columns, hexagons, and corner tanks do not have the surface area and swim length that a standard rectangle provides. It may not sound fancy, but your fish will be much happier and the equipment will fit more comfortably in a rectangular tank.
Most tropical fish have adapted to a wild environment, and that means color. muted ones like brown, gray and green. Offer light blue sand to a brown catfish, and it will cause it to pale in color. Use white sand and all your fish will be pale and washed out. The natural colored sand makes the fish feel at home.