they are fish that are active with their mates.
a very active fish
He seemed to have a knack of knowing where all of the active fish were.?
fish that feed frequently and can be hooked effortlessly.
Betta fish have different personalities. Some are more active than others. If your betta fish is active, that means that he is healthy. Sometimes, they will get hyper when they see you because you feed them.
an active fish is not always a hard working fish but it needs at least 1.5 gallons of water to live in. The tank your fish is in should be wider than taller so it can swim more
Blue Tang fish are not nocturnal, but are active during the daytime. These fish live in shallow waters of the Caribbean amongst the reefs.
if they aren't active
If you want an active fish that moves around a lot then a Betta is not for you.
Verb
The best thing you can do to make your Oscar more active is to raise the temperature of the heater you have.
Betta splendens (Siamese Fighters) usually find a quiet corner to hang out in. They are not active fish.
they become less active in the cold