Hi my boyfriend and I recently purchased a 20 gallon tall tank. I put white sand along the bottom along with plants and a few decorations. I have a 100 watt heater but I plan on buying one that you can actually see what temp you are setting it to. I have a Tera whisper ex20 power filter. I'm afraid we may have overstocked our tank we got a little exited at the store but I plan on upgrading to a 40 gallon eventually. We have a pale blue gourami, a dwarf gourami, 2 black Molly's, a Dalmation Molly, 3 big yellow neon fish, p(forgot the name) catfish, a sucker fish, 2 snails, 2 African dwarf frogs,and 2 ghost shrimp. Since we did so much at one time I know it's a lot on my filter. I've been doing 20% water changes every two to three days. But yesterday the ammonia spiked to 4 so I did a 50% change to try and get it under control. I also think my two black Molly's are starting to show signs of ich. It's a male and a female. He won't leave her alone its why I bought a female Dalmation Molly but he doesn't even look her way. But the two black mollys have begun rubbing themselves agains the gravel and what not. So I'm trying to get my tank up to 80-82 degrees to start the ich treatment. Anyways any advice? Hahaha hopefully im not doing everything wrong. Tank is a week old.