Hello i have reefer 250, so a 65 gal. I have questions about sulfur reactors/denitrifiers. I wanted a longer term and better way to reduce nutrients. I know the real draw back is lowering dkh, but im planing on dosing alk by its anyway and watching it via neptune trident. What are some good ones out on the market that are for smaller aquariums? And what media do you put in them?

