I have a 20 gallon long freshwater tank. I've searched the web for answers to problems of ammonia being too high, and my fish have had Ich for a week. I have treated the water twice (doing a 1/4 water change between) with Tetra Fungus Guard tablets. I can see spots on three fish, all Tetras. I also have 2 small catfish, 2 Green Barbs, 2 Tiger Barbs, and a 3" Angel Fish, all seem healthy. I've raised the temperature to 88 today (suggestion I found on a site for Ich). I've cut way back on their feeding, I clean the tank weekly with 1/4 water change, but lately I have been doing a 1/4 water change every other day to try to eliminate the ammonia problem. I use the strips for testing water, and have read they are not accurate so I will be going out this evening to purchase an "API" kit someone recommended. I have 2 filters running (without charcoal right now with the Ich treatment). They are both internal power filters, a Whisper 10 and a Whisper 20. Since I don't get aeration from these, I have 2 bubble bars run by a Whisper pump (40 gal size). I leave the light on a timer for 9 hrs per day. I know in the not too distant past I have "over cleaned" the tank. I did not know about the tank water having to be "cycled" for good bacteria, so the fish went directly into the new set-up. I have been told to use "Neutral Regulator" which I have done for two water changes, 2 weeks apart. I have learned recently not to clean the filters so thoroughly, so I realize I've been doing away with all the "good stuff" in the past. I've been feeding them Tetra Tropical Crisps. I have lost about 5 fish (not from Ich.. probably high ammonia(?)... My Pleco (spotted small kind) died due to the Ich treatment instructions NOT saying it was dangerous / lethal to them! Oh, I also have been using API Ammo Lock recently, every other day, & before that I was using AmQuel Plus which is supposed to detox ammonia, nitrate, nitrite, & Chlorine. BTW, I have well water, so no problem with any chlorine, however, there may be something in the water or lacking in it(?).... I read that "electrolytes" should be added ("Start Right" by Jungle was a suggestion on a website) if the fish wiggle or shimmy in one spot, which remembering back some did this before they died - again, I thought from the ammonia problem I can't seem to regulate. Can anyone recommend any solutions other than starting completely over?