I am having trouble controlling nitrates in the breeder system, despite relatively small amounts of feed I have enough bio and mechanical filtration, but I can't control the nitrates (and probably the phosphates but I have not measured). I have a fuge with cheto, but it does not grow at all, even with enough light and flow, etc.
Has anyone had any luck with a sulfur reactor or carbon reactor or fluidized sand bed reactor? Any new techniques to lower nitrates?
Tx
SB