i did a 80% change and tested the water evry thing is perfect for a red tail even temp i will get a pic up today all thow he seems way better allready just taking a long time and still has discoler on his head that i have never seen i will try to get a pic up asap also is ther any reson a red tail snake cant have sult in the tank i know it helps to clean wonds and help cleanther gills but that also seems to mess with him alot