So my cycle seems to have stalled at high nitrates. Help please? :D

[Enigma]

Try Instant Ocean Nitrate Remover if you can find it. It will be a bandaid solution (you'll still need to get the nitrate source figured out), but I can tell you that it does work. It is a biopolymer that you add directly to your system water. It takes a bit of time to work.

http://www.instantocean.com/product-...e-reducer.aspx