I have had persistently high phosphates for the last 3 months. I used to run 0.13-0.18 reliably. Now I run 0.23-0.33 reliably. Over the last 3 months I have reduced feedings 50-57%,, dosed lanthanum (which works), tested my RO water, have not added new rock, have changed my GFO frequently (I use rowaphos) etc etc. I cleaned all my pumps last week and my skimmer is having more output for the last 4 days...now my P is the highest it's been all year. I give each change a week or two to to settle in. No changes
I cannot think of or find a source for the phosphate. My SPS have dulled up and I get more algae on the glass, but so far no other ill effects. I am trying to get it under control as I dont know if will continue creeping up. It's very annoying. I wouldn't be chasing it if my SPS weren't dulling up.
I am stumped to the cause. Has anyone had anything like this before?
Parameters are Alk 9, Ca 489, N 20.1, Phos 0.33, Mag 1430, salinity 1.0265. I test weekly and those are pretty usual number for me, although N will range from 8-20. I feed either Rods food or 2 cubes of Hikari (various types) and NLS pellets several times a day off an auto feeder.
I've read tons of threads so I dont know if there is much to add unless someone has some insight. Part of this is just venting I suppose.
I cannot think of or find a source for the phosphate. My SPS have dulled up and I get more algae on the glass, but so far no other ill effects. I am trying to get it under control as I dont know if will continue creeping up. It's very annoying. I wouldn't be chasing it if my SPS weren't dulling up.
I am stumped to the cause. Has anyone had anything like this before?
Parameters are Alk 9, Ca 489, N 20.1, Phos 0.33, Mag 1430, salinity 1.0265. I test weekly and those are pretty usual number for me, although N will range from 8-20. I feed either Rods food or 2 cubes of Hikari (various types) and NLS pellets several times a day off an auto feeder.
I've read tons of threads so I dont know if there is much to add unless someone has some insight. Part of this is just venting I suppose.