Why isn't my coraline algae growing!

[Timbits]

Originally Posted by FragIt Dan

IMO, if Cu was your problem you would see problems right from the get go, but in this case there is a good chance I am wrong . Chronic low levels can bioaccumulate and cause issues with time. It sounds like your symptoms would point towards this, as unlikely as it may seem. You could do some research on Cu LC50's in the marine environment. I actually did some undergraduate work on this exact topic. Have you tested for Cu yet? If it does turn out to be Cu, you would be better off converting the tank to FOWLR. With a great deal if effort you can leach copper out of things like glass and plastic, but the rocks should go to someone with a FOWLR tank with an appropriate warning about the Cu content. I might see if I can dig up some of my stuff on Cu, but that was a few years ago.


FragIt Dan

Hey Dan,

Thanks for your help, I really appreciate it. Been pretty stressed about this... I haven't tested for Cu yet but I will do that ASAP.

Do you think i can get away with just taking the rock out and adding fresh live rock?