Ok here is what I get and dont I understand how to setup my HT tank I need right now for the fish and get them going being medicated, also know about the PVC fittings in there for places to hide and the tyration levels of the copper. what I am still quite unsure about is how long on copper as I know its not the best for the fish either or is the low dose ok the entire time or is there a day or week schedule I should run this copper for, also no charcoal can be used in the filtration of the HT tank correct. the display will stay empty of fish for 12 weeks as 8-10 is what i see recomended but would rather be safe. also water quality I know must be watched carefully in the HT, is a small LED ok to put there or just ambiante like the best. also everything I new so I will be cleaning with extremely hot water should I use anything at all during cleaning and wiping it all down with white vinegar is recommend before setup correct. please help me out here I dont wanna add more stress or make things harder or do it wrong please help. Thank you