Hi, i've finally bought the new tank to replace my corner tank and as usual i bought a completely different tank to the ones i was looking at, I ended up getting a fluval roma 90 litre tank (as after asking questions at 2 lfs they both said this was a really good set up), and added black and white fine gravel, after 2 days i had water readings of ph 7.6 hph 7.4 amonia .25 nitrite 0 and nitrate 5.0 so i added the rock and plants from the corner tank to help establish the filter etc. and have done regular water changes everyday and tested the water after a few hours each time,they now read ph 7.6 hph 7.4 amonia 1.0 nitrite 1.0 nitrate 5.0, yesterday ammonia was at 2.0. My question is at what point do i add hardy fish like tetras to the tank as i already have some rosie tetras in the other tank? i also noticed that when ammona was 2 it went all cloudy but has cleared is this normal?