After 30 years of gap I have started it again. I have a 125 lt and a 30 lt Juwel tanks.And possibly get a 60 lt soon. When I started to study,I realised that it is so much different what I used to do.I have decided to keep angels in 125 and small liver bearers and neons in 30. I have so many questions to answer.And i thank you for your help in advance...