The pufferpedia says 30G per GSP, but I've read PufferPunk recommending 55G for one GSP and RTR saying to keep one GSP in a tank between 40-55G.
I'm upgrading my GSP's tank, he's still a baby < 2" and he has been in a 22G for 7 months.
I'll order the tank within a few days, it will be longer and wider than tall. I was thinking about ~39G, it will be enough room for one GSP and nothing else? (The old 22G will be the sump.)
Thanks in advance.