If your betta fish is laying at the bottom of the tank all day, something is usually wrong. The 7 most common reasons, from cold water to swim bladder issues, and what to do about each one.

Goldfish are the most mistreated fish in the hobby — comets, orandas, and bubble eyes need completely different setups. Real tank sizes, filtration, diet, and the myths that kill them.

Bettas in the wild live in thick, lush vegetation, and they want cover in your tank too. Water lettuce, anubias, java fern, amazon sword, and six more easy plants that fill a betta tank with hiding places, resting leaves, and cleaner water.

If you've ever watched your betta fish flare, hide, glass surf, or just sit there looking unimpressed, it's usually not because they're moody. It's because something in their environment isn't working for them.

Bettas do not have to live alone. Ten tank mates that can actually work in a community betta tank, from mystery snails and amano shrimp to kuhli loaches and the African dwarf frog, and the tank size and backup plan you need first.

We’ve all seen those community tank guides that claim betta fish can live with almost anything if the tank is big enough. But here’s the reality, just because they can survive together doesn’t mean they’re thriving.