Does Chemi pure leach phosphates?I use the elite version.Something in my sump or tank is leaching it even though my salifert test kit is reading zero,I use RO/DI and I run my phosban reactor.I don't feed much.Driving me Nuts!!:frown:Also using macro in the sump.Corals are fine though.
Maybe,gotta do a serious cleaning in that sump.Need a mag drive to get it done.I saw someone selling a mag 3 on here and on Ebay too.sucking that out is hard when you don't have a pump to do it with.:arg:
Wondering this myself..
Test kits are near useless when measuring phosphates, best done with a Hanna meter.
Will a turkey baster reach down between your baffles?
I think it might.Got to explore the possibilities.I used to have LR in there and it got real dirty and caused a spike in nitrates.Just have the Cheato in there.Need to get all that crap out of there on my next water change.
It could be a variety of reasons..you mention you 'had' LR in there..if you recently took it out you could be having a mini cycle..or another cause might be that your bulbs are getting old..
Many things to explore :spin: