Approaching total coral wipe-out

[hfp75]

I sympathize for your situation!!

I tried to save few bucks and used HC-GFO and with a Hanna tester I was able to prove that the same levels of PO4 that went in to that reactor also came out!!! I have switched back to Rowa and we are back on track with total success!!

Sometimes the name brands cost more but they seem to be predictable....