Biopellets out, gfo in

[kien]

Originally Posted by chef

Since using h2ocean salt, my alk has climbed to 9.5-10. I was advised to take my pellets offline to correct this. 2 days later, fuzzy rocks and more than usual algae on glass. Would running gfo help fix this. If so, can I run it in the same vertex reactor?

As others have already suggested, I would definitely take your biopellets off line if your alk is that high. I'm going through that right now with a bit of tip burn due to high Alk myself.

However, taking biopellets offline will not lower your alk so I am uncertain as to your statement, "I was advised to take my pellets offline to correct this." Again, taking BP offline will not correct your alk level. I would recommend water changes with regular Instant Ocean to lower the alk over the course of a few days or weeks.

And yes, you can run GFO to help with your algae issues probably due to a spike in Nitrates and/or phosphates. You can run it in your BP reactor so long as you take your pellets out.