algae growing on substrate

Thats not a product I am familiar with, is it a GFO product you put in a reactor or bag or some other form of media or liquid?
How often and how do you use it?

 

i never thought of this until now but i just recently got a bit more live rock and it was very soon after that i started my battle with the algae. Do you think the new liverock made my tank cycle? the rock i added was not as well aged as the rock i had prior to adding.

 

it's a liquid. 1ml of treatment removes 1.5ppm per 1 gallon. I use it about once a month. I have never tested my water and had a reading anywhere near 1.5ppm though so i assume because the test is somewhat hard to read that i have a phosphate reading between 0ppm and 0.25ppm

 

Was the rock fresh from the ocean or possibly from someone elses system? It could be saturated with phosphates and need cooking.

I am not a fan of any of the liquid treatments. Most bind the contaminants so they cannot be readily detected with test kits but few actually remove the contaminant. I prefer a GFO media in a reactor so you can adsorb or absorb the contaminant on to the media and throw it away. GFO is superior to aluminum based medias in that it does not release the contaminant back into the tank once it is saturated where aluminum based medias do. Both are beter than liquid treatments you just need to pay attention to replacing the aluminum medias on time.

Coming from the municipal water and wastewater treatment industry I have seen a jillion miracle treatments and gizmos but nothing beats good old physical treatment and removal so its gone and does not hang around.