First of all I am going to try to keep up with this. I have seen some other threads that were great when the people making them kept up on them. I know you all have had your Ick spells and so have I (most with no success). I am going to try to cure my powder brown tang and list every thing I am doing to help him. All thoughts are welcome, cause I don't have all the answers. First off I noticed that he was developing spots and dosed my tank with malachite green. (this was a big mistake) My entire system totals 100 gal and I really don't recomend doing this again. First of all Day after dosing tank became cloudy and noticed a spike in nitrates. The spike is about 40ppm and hasn't droped. So I decided to do a water change. About 50% in two days. Testing after water chage didn't show much improvement, infact I think it still rose some. So to much dismay and some posts on here I figured my tank had some good die off and it needs to cycle back into place. I will still do water changes but just not that much again. All other parameters with in range. temp 76 ph 8.3 nitrites 0 amonia 0 po4 0. Display tank is 75 gal with 29 fuge in bottom. pic of tank and stand in my pic place. Lighting is 3 stage unit mh with antic blue and night lights only half the tank is lit. This is about day 6 and tang still alive and feeding well. You can see his fat belly in pic. Spots keep changing place and in morning he looses color and regain some in after noon after MH have been on most of the day. I have also noticed all my algae is gone probably because of the nitrate spike. I have been feeding my tang twice aday in the morning some solid pelet food and then in the afternoon with some frozen emerald entree or marine cuzine. There is also a clip with dried algae on it or fresh calupra from my other tank. I have just started today dosing food with garlic gaurd. Tang don't seem to rest much even when lights are out he is up and moving. Tang is also housed with fire gobie and gobie is showing no signs of ick yet!!!!!!!! There are also 3 turbo snails and 2 astira snails and about 6 hermit crabs in tank. Tank only has about 25 to 30 lbs of live rock in it also. There are also some starter coral in tank too just a few pylops. Can't aford live rock right now untill economy springs back. sorry pic is blurry but I guess my daughter feed him crack at night cause they both run around like a group of mad squirrls.