The istlanum are just fry growing out in a 20 gallon. When they get a little bigger I'll do a growth thread on them. Mel gave me some really good advice on keeping them healthy and keeping their guts on the right track.
I'll pm you the infoI'm growing out 3 Istlanums all about 2.5" long, If you don't mind me asking what info did Mel share with you regarding them?