Just use a capful per week. With kent marine they water theres down so its not as stout. I have dosed with trace elements for 4 months now. Everything is doing good I have a Frogspawn, pompom xenia, silver xenia, waving hand, 2 buttons, 3 different types of zoas, 3 other types of buttons, a torch, a candycane, 2 monti caps, a digitada, a toadstool leather, a cabbage, 2 kenyas and 3 fish.