hey guys anyone out there that has used a flood and drain system. i was wondering how often i should change the water in my res and how often i should be giving them nutes. i heard once a week change res and nutes not too sure want to make things run smoothly. thank you. will have new pics up in a few days.

and cheeto i actually have more hydroton rocks cause we did not use all of them but i ended up just doing paper plates i might switch well see.