Do goldfish prefer long tanks or high tanks?
- Thread starter melissasroja
- Start date
See thats what I would think too. My goldfish tend to not go to the top of the tank often. Regular tank not a high tank. I see a lot of hexagon/octagon tanks though with goldfish and they seem to be happy in them and they look beautiful. Would the larger width make up for the difference in length and height?
I 2nd the width vs. height. If I had the choice, I'd take a wider tank over a taller one any day. In fact, since getting the 40 gal breeder, I would take THAT over a 55 gallon any day too. I like the footprint a lot better. JMO of course. 
it is just fine. I'm not sure that the pressure is any different on it than any other glass tank?
Posted on mobile.aquariacentral.com
Posted on mobile.aquariacentral.com
Not sure. A lot of people say not to fill a breeder with water. Long tanks yes. Breeders no. I have a 40 breeder Ive always considered filling but my husband doesnt seem to think it will work.
many many people here use 40 breeders full of water. not sure where you got your info, but it isn't true.
maybe you are thinking of a reptile tank? those are thinner glass and not really meant to hold water.
Posted on mobile.aquariacentral.com
Posted on mobile.aquariacentral.com
40 breeder is just a tank with specific dimensions. As long as it's manufactured for fish it's fine. I have one set up right now with saltwater.
A lot of 40 breeder sized reptile tanks are sold, and those are not necessarily made to completely fill with water, and may not be safe to do so with.
The majority of fish would definitely prefer more side to side and front to back swimming room than height. You also get more oxygen exchange from the top on tanks with a large footprint rather than tall tanks with a small footprint.
