You need to cycle your tank 1st, before you put the puffer in. Cycling does not mean just running the tank. You can either fishless cycle your tank or add Bio-Spira, for an instant cycle:
http://www.thepufferforum.com/forum/library/water-filtration/fishless-cycling/
Find out what SG the puffer is being kept at now, & cycle the tank at that SG. Don't just assume it's 1.010. F8s are best kept at 1.005. Didn't you read that F8 article I linked you to?
http://www.thepufferforum.com/forum/library/water-filtration/fishless-cycling/
Find out what SG the puffer is being kept at now, & cycle the tank at that SG. Don't just assume it's 1.010. F8s are best kept at 1.005. Didn't you read that F8 article I linked you to?