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View Full Version : What are The Phosphate Levels In Your SPS Tanks?


ccradr
07/07/2009, 08:09 AM
I am currently at .02 consistently. Was wondering if this was considered ULNS? Or do I have a ways to go?

mpoletti
07/07/2009, 08:29 AM
ULNS is a designed system of importation and exportation of nutrients. .02 is definitely on the low end.

My tank usually swings from .05-.07.

ccradr
07/07/2009, 10:06 AM
Gotcha...I have a few sps in the tank that just lose color after going into my tank. Trying to figure out why. No nitrate and weekly water changes with D&D salt...etc. Espcially blue corals. Thought maybe the phosohate wasnt low enough

moo0o
07/07/2009, 10:19 AM
maybe its not enough light or flow. when i changed to D&D salt, my purples and blue really popped.

evsalty
07/07/2009, 10:30 AM
I thought that I read somewhere that a little nitrate helps sps. Also everything I have read says phosphate of .03. But I am certainly not an expert in any way and do not keep too many sps at this time. Mostly though due to my lighting.

ccradr
07/07/2009, 09:20 PM
Ive got 3 400 watt 12k reeflux bulbs on my 265...flow..2 tunze 6100's on a tunze controller...two modded maxi jets and a dart return pump.

Dejavu
07/08/2009, 01:39 AM
Normally between .05-.07 ppm (hanna).

MrPike
07/08/2009, 08:50 AM
Phosphate takes many different forms, we can test for one of them, which also happens to be the most reactive and in demand form. If you see any sort of color, you have too many phosphates.


JMO.

stanlalee
07/08/2009, 08:54 AM
<a href=showthread.php?s=&postid=15323563#post15323563 target=_blank>Originally posted</a> by MrPike
Phosphate takes many different forms, we can test for one of them, which also happens to be the most reactive and in demand form. If you see any sort of color, you have too many phosphates.


JMO.

From what I understand test kits either test inorganic phosphates or total phosphates (by knowing both you can calculate organic by subtraction). I would guess organic bound phosphates would be pulled out by carbon/skimming ect. What I'd like to know is which one a hanna photometer test for?

Gondore
07/08/2009, 11:10 AM
My system consistently runs at 0.00 (Hanna). I was running BB, with filter sock, skimmer, GFO, and 10% weekly water changes. I have since switched to a shallow sand bed and MB7/vodka (instead of GFO).