I feed pellets once a day. My light are 3 months old I have mangroves dragons breath and Cato but they arnt growing. The Lfs I get my water from tests their water and I think they told me their tds are below 5 if that's right I just solely started using them instead of the drive up water places about 2 mo tha ago but I just hate how my tank looks no coralline alge will grow I am just rather anoyed.