My GSP shares a 29g with a very small snowflake moray. SG
is 1.025 and the puffer is very healthy. He's about 3" right now. A 55 would be plenty of room for a GSP. They are fin nippers so you don't want to put them in with anything that can't move fast. If your LFS
has them in FW
, you'll want to acclimate them over a period of a couple of weeks to full salt. These fish are very hardy when kept in SW
. When kept in FW
, they seem to be very susceptible to ich.