Fergit that Nutes use your fish poop, and a pinch of calmag to the rain water or better 50/50 tap, you may need the micros
Heron is a killer.The medium is just Compost and peat moss. Past year there hasn't been any fish since a heron decided to
have lunch one day. Only thing going in is rain water.
Big time killer but thats nature lol they are cool to watch fishing its amazing how long they stand still till they catch i see them a fair bit on the rivers near meHeron is a killer.