sps help

[JOEL]

Originally Posted by Aquattro

I agree, Greg. Also, there is no encrusting on the base, so depending on how long you've had them, could be an indicator of a problem (high PO*)

I just added phos-zorb to remove the phosphate if there is any.
I should not trust my test kit.
I do have a bit of algae so from what I can tell I must
have a bit of phosphate. Is that the only thing that
algae need to grow?