I took a FC reading earlier today and using the FAS/DPD test it came out to .5.
I was thinking that I could see a greenish tint coming back and that I either didn't get rid of all my alge from a few weeks ago or it came back.
I added 2 182 oz bottles of bleach around 7:00. I did another test around 9:00 and my FC was at 1.
I added 2 more bottles at 9:00 and then tested again about two hours later.
Here are my full numbers:
I have been adding 8lbs of CYA over the past few days via a sock in front of a return to get my CYA up from 0 so I did not test it.
Does the CC at 5.5 tell me that there is something (alge?) in the water that the FC is acting on?