Originally Posted by Scotty09
So phosphate testing is unless then ? And I think I got it under control just need something to tip me over the edge. I think it was from my skimmer being blokes for 2-4 weeks
I don't think testing phosphates is worthless, but it may not be helpful in finding the problem.
Also, using like an API test kit isn't going to find the really low readings of phosphates which can also contribute to algae growth.
If I see algae, i figure i have phosphates and take action to reduce them.