by puffykid on Thu Apr 12, 2012 6:11 pm
LR displaces a lot of water and makes the tank hold a lot less then 30g. So I don't suggest you get any other fish, but trying tank mates is a good excuse to upgrade!
If I'm not mistaken (and I def could be) I believe in a FOWLR tank you need at least a 55g if you want to try tank mates for the occupants to be comfortable.
Another thing to think about is:
How long has your gsp been living by himself? If it's been a while he might be less willing to take tank mates.
Also again it comes down to the individual puffer, and immature puffers tend to be more passive then older puffers.
1 M. Turgidus - 29 gallon