Nope no bacteria starter. Just straight ammonia, high temps, I did use some ph down initially (for phosphates I think) but that was back in the beginning of March, and some fish food.
There are only a few possibilities of things that got into the tank. The water may or may not have been dechlorinated after a water change and at times the water added may have been warmer or cooler than what was in there. Also a heater broke but didn't seem to change much. No cleaners (if only I was that on top of my cleaning), no air fresheners (I don't use them at all),
This tank is a 20 gallon tank. I happen to have 5 red eyed tetras and 1 black neon in ISO for now recovering from ICH they are set to be freed around Monday as long as we see no other signs (and so far we haven't in a week).
The other tank is a 28 gallon with an Aqua Clear 50 and an Aqua Clear 20. It has 6 neons and 4 corys so the bioload isn't all that big but it is something. I have been testing the water. This one has been up since February. It has been testing with 5'ish nitrates, never tested nitrites and is usually 0 ammonia. I changed the substrate to sand last weekend (for the corys) and it went closer to .25 on Monday/Tuesday but today tested back at 0.
I am not sure about the red eyed tetras in a 20G but they have been in a 10 and can move somewhere later so it doesn't have to be permanent. We have 3 tanks but only one is 'cycled' as it was a fish in and its population is slowly growing.
I am a SAHM with just one (the others are off to school) so I can manage consistent water changes if I switch to fish in. My son (6) has been waiting patiently for so long and is learning to do it right but is getting kind of bummed. He got the tank in the beginning of March and is still waiting. I told him mid-April so we are still ok but I just want things to be moving along so he doesn't get discouraged and understands why it is right to try to do things the right way before you get a pet ya know?
Thanks again for all the advice. This forum has been a life saver (mine and many itty bitty fishies.