What do you need for a pregnant fish?

I gote 3 fishes at the store and one of them is fat and lopsided and the fishes in the fish tank chase her.

My bottom feeder fish just suddenly got really fat, is it pregnant? if so, do I need to do anything special?

What fish can live to be over 100?

how do I now if my fish is pregnant or not ?

One of mey fishes looks bloated. Once it swims to the top ait falls to the botttom of the tank. It has been hiding in the ba...

I am getting a fish next week? What do I need...

How long do tetra fish carry there eggs for?

I kinda need hlp here.. im not sure if my beta has eggs because she was in a bowl with a goldfish until he died. and now she ...

I know theres goldfish food but for other fish is there a specific thing they need?

My Oscar fish looks really fat and has been laying on the botton not moving much. Also it has clear a spot behind a big rock,...