What they need in smaller fishbowls is a Oxy shell
not if you are a fish
To Breath.
Fish need gills to help them breath,if fish didn't have gills they wouldn't be able to breath they would suffocate and drown. Poor fishy!!:(
Yeah, it could possibly be waste, or you're over feeding your fish, remember, not all fish have the same appetite as on the label.
saltwater fish need to breath in saltwater and not fresh water. just like we need to breath in oxygen and not carbon dioxide.
Your fishbowl is not suitable for keeping fish in. Far better you use it as a Vase. The minimum water requirements for fish are 1 inch of fish needs at least 1 gallon of water. If you want young fish to grow out properly you will need to do much better than 1 gallon to 1 inch and make it more like 3 gallons to the inch.
food and a way to breath
Breath! All living things need oxygen to live (except plants). oxygen gets trapped in the water and the fish use it to breath.
no its harder for them to breath in the ocean because there is the salt there that they need to mate in
fish need air because they won't be able to breath if they didn't have air, and fish need air badly because they spend most time in the water. fish need air as much as we do.
Yes they need them to breath underwater like any other fish.
The fish need to stay inside that water so that they can breath cause they can not breath when they come out of the water