0.00 phosphates

[Drewl117]

So I've been having some problems with my sps since a power outage this past spring (long story). I did quite a few water changes to try and help, I'm still loosing sps. I've tested a ton and kept coming up with 0 phosphate on my Elos test kit... I tried a salifert kit and 0. I had a friend come bye with his low level Hanna phosphate checker and 0.00... He did it 3 times to make sure because he didn't believe it. He owns a maintenance and install business and I've known him for over 11 years. He suggested to try and feed more NLS pellets to bring the phosphates up some. The rest of my params seem pretty good to me. Any tips would be appreciated!

Tank is a 210 with a 20 gallon frag tank plumbed in
Salinity 1.026, Refractomiter
Ph 8.3, seney and Elos kit
Nitrate 4, API
P04 0.00 Hanna low range, Elos, and salifert (I believe)
Mag 1480, Elos
Calcium 400, salifert and 422 Hanna
Alk 9.68 Hanna

[fcmatt]

Are you runnin to much gfo?

[Drewl117]

I was using gfo in a reactor but I stopped using it about 6 weeks ago. I only run some Rox Carbon now

[djbon]

Just read a member is having issue with ROX carbon as well.

http://www.reefcentral.com/forums/showthread.php?t=2589485&page=4

[bertoni]

Amazon has food-grade sodium triphosphate for sale. If you're very worried, you could get a bit and see whether that helps.

[Drewl117]

Just read a member is having issue with ROX carbon as well.

http://www.reefcentral.com/forums/showthread.php?t=2589485&page=4

Thank you for that link! I will try removing carbon as well for a while. I have a Brs reactor that I use and I usually fill the canister about half way with the Rox. If I do need to run Rox I will try smaller amounts. Thanks again.

[djbon]

Thank you for that link! I will try removing carbon as well for a while. I have a Brs reactor that I use and I usually fill the canister about half way with the Rox. If I do need to run Rox I will try smaller amounts. Thanks again.

No problem. Happy reefing!

[toothybugs]

An alk reading of 9.7 is a little high IMHO, unless it's been that way forever. If so, disregard.

[Drewl117]

I dose brs 2 part for alk, mag and calcium. I actually have had to lower the dose for all 3 since I've been loosing corals. I usually keep it at or around 9

[conix67]

How do you get phosphates down to 0 without any method to export phosphates? That is really strange. I stopped GFO for a while (over a year) and it's at 0.3ppm which is more than 10x recommended level.

How's the water temperature? It's not listed as part of water parameters. I'm sure it's steady and well controlled, just had to ask.

[Drewl117]

I did run Brs gfo in a reactor but took it off line.
Temp is stable at 77.8 all the time