Cool, I just wrote about this in the new article I'm getting published. I can be done quicker than you think.
Whenever I change a fish over from FW
, or visa-versa, I use a drip system. I put the fish in a bucket below the tank I will be moving it into, covered by water about 1" over its head, from the tank the puffers were living in. I tie a knot in an air hose until it drips enough water into the bucket to raise or lower the SG
in the bucket .001/hour.
The problem you really have is, you cannot keep those fish together. A porcpuff will grow to 12+", F8 2 1/2-3", GSP 6". Not a good combo.