adroitmind
Member
I know that RO/DI is the best choice but i am new too and have been using tap for the entire two months my tank has been up and running. Fish for like six weeks. Everything is fine with zero fatality rate. You should test your tap water befor you use it IMO. That is what i did and when everything tested at zero except nitrates which are at 10 i decided to use it. I did have a nitrate problem in the very beginning but i also have a deep sand bed that is finally starting to work it's magic on those trates.