Just about ready to throw in the towel grrr

[sphelps]

Originally Posted by digital-audiophile

With sump minus displacement of rock my system is only about 100G total water and I am only lightly stocked so the ER should be sufficient

That's exactly what Euro Reef was counting on when they came up with that rating, plus they didn't make that rating for a zeo tank. I'm not trying to cut you down, nor am I telling you to break your bank, I'm just being straight forward. If it was sufficient you probably wouldn't have the cyano outbreak. Your best bet would be to cut back on the zeo until you get things cleaned up.