PO level
 

I've had my tank up and running now for one year and it's been smooth sailing so far. I have only had a few losses but those were pre ordained before I even received the pieces. I had in the past been checking phosphate levels with a api test kit. Not great I know. Levels never registered on the kit. Wife got me a Elos low level kit for Christmas and just did my first test. Results .03 :) not bad for no reactors just running two bags of chemi pure elite. but id like to get them lower . Anyway I love Elos products I now have all there test kits and highly recommend them to every one. Hope you all had a great Christmas.

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It's my understanding that ~0.03ppm PO4 is optimal for sps tanks. Any particular reason you want it lower? I would expect corals to bleach out if you pull it down any lower. If you still want it lower though, GFO would be the only way I know. The more you use, the lower it will go, but if it's already that low, not likely you'll need much.
Dan

Okay cool I'll keep it where its at.

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