I had a bad algae outbreak a few months ago, but it's now settled down and all the brown and hair algae is gone.
But, over the past 10 days, a lot of green algae has been appearing in the sand, and looking at the underneath of the sand from the side of the tank, it's going through to the bottom of the substrate too - bright green in places! But more of a dull green on top.
I'm running rowaphos, which along with my hermits helped get rid of the algae before. But now it's come back for some strange reason...
All other parameters are ok, and I use RO water (2 TDS) and phosphates are undetectable. I would guess it'd be about time to replace my rowaphos, but seeing as my phosphates are ok, I guess not?
Anyone any ideas? All other parameters are fine. Light is 12 hours a day from 2pm to 2am.
But, over the past 10 days, a lot of green algae has been appearing in the sand, and looking at the underneath of the sand from the side of the tank, it's going through to the bottom of the substrate too - bright green in places! But more of a dull green on top.
I'm running rowaphos, which along with my hermits helped get rid of the algae before. But now it's come back for some strange reason...
All other parameters are ok, and I use RO water (2 TDS) and phosphates are undetectable. I would guess it'd be about time to replace my rowaphos, but seeing as my phosphates are ok, I guess not?
Anyone any ideas? All other parameters are fine. Light is 12 hours a day from 2pm to 2am.