Righto mate, thanks. I have just over one wpg and dose weekly with Aqua Master plant food (liquid). Its about a twenty gallon growout tank with one 5in tandanus tandanus catfish and one 2in firemouth cichlid. I am making a 3ftx14inx18in tank for the firemouth and plan to keep cory cats and tiger barbs and such with it. I plan on making that heavily planted as well. I have a pond in the works for the tandanus catfish.