So this morning I awoke to all my tanks inhabitants covered in Ich 
I know the basic steps of curing, however I have some scaleless fish and am not sure how to go about dosing the tank. I plan to purchase a new heater, and slowly raise the temperature to 82 degrees (currently at 76 degrees). The tanks inhabitants include 4x Neon Tetras, 4x Black Neons, 2x German Blue Rams, 1x Skunk Corey, 1x Rainbow, 1x Dwarf Gourami, 3x Rummynose tetras, 1x Knight Goby, and 3x Livebearers (Platy, Guppy, and Molly). I know the treatment is suppost to be cut in half for tetras, so do I need to seperate the fish for different treatment dosage? Any tips greatly appreciated. Also, I have a 20 gallon cycled and ready to go if seperating the fish is at all necessary, it had convicts in it that I gave away yesterday, so I do have a seperate tank readily available. Thanks!

I know the basic steps of curing, however I have some scaleless fish and am not sure how to go about dosing the tank. I plan to purchase a new heater, and slowly raise the temperature to 82 degrees (currently at 76 degrees). The tanks inhabitants include 4x Neon Tetras, 4x Black Neons, 2x German Blue Rams, 1x Skunk Corey, 1x Rainbow, 1x Dwarf Gourami, 3x Rummynose tetras, 1x Knight Goby, and 3x Livebearers (Platy, Guppy, and Molly). I know the treatment is suppost to be cut in half for tetras, so do I need to seperate the fish for different treatment dosage? Any tips greatly appreciated. Also, I have a 20 gallon cycled and ready to go if seperating the fish is at all necessary, it had convicts in it that I gave away yesterday, so I do have a seperate tank readily available. Thanks!