The tank has been set up since February of this year. I added fish 5 weeks after that, and never had problems up until now.
Someone experienced (who runs a small fish business in my area specialising in tropical fish) did liquid testing and he said the ammonia is .5 to 1. He told me not to worry about my nitrites/nitrates because they were perfect, so I didn't question that. He did tell me that the ammonia shouldn't be a major problem at this stage due to the size of my tank (25 gallon) but recommended I use a water conditioner and do some water changes like I am currently doing.
My fish are...
1 Molly (I bought it by accident, got mixed in with the Platy
at the store. I am returning it as soon as possible)
1 Chinese Algae Eater
3 amano shrimp
1 Bala Shark
(juvenile, will get rid of it once it gets too big, but it does a great job and cleaning up the tank!)
1 male short-fin betta
4 zebra danios
2 black neon tetras (2 died due to new tank syndrome, I think I will be giving these away as well)
hybrid fry born last weekend. I have three people willing to take them off my hands.
Think overstocking may be an issue?