gfo alternatives

[Frogger]

There is always a more natural way of controlling nutrients using an ATS or chaeto in the sump.

Tim Tessier (on Canreef) sells Fozdown which is lanthanum chloride. He is a strong advocate of its use.

I have used each and every method I have mentioned above. I do not like adding chemicals or using GFO and I couldn't grow chaeto to save my life. My ATS works like a charm. I had to reduce the hours I run it to reduce the amount of nutrients it is removing from my tank.