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Pesty Phosphates
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Liveinabox419
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Joined: 21 Feb 2006

PostPosted: 2009.08.01(Sat)18:05    Post subject: Pesty Phosphates Reply with quote

So I've been doing battle with algae.

It takes over my live rock in about a week and a half, in which I scrub it all back off again. Phosphate levels are .5ppm and I know they need to be zero but I'm trying. I put 125 ml of PhosGuard in my Rena XP2 and have stepped up to weekly water changes as of late.

Anything else I can do?
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28 gallon freshwater

29 Gallon Reef Tank: 1 Black Percula, 1 TR Percula, 1 Yellow Watchmen & Pistol Shrimp, 1 Six-line Wrasse, 1 Cleaner Shrimp
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diademhill
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Joined: 18 Apr 2007

PostPosted: 2009.08.02(Sun)1:56    Post subject: Reply with quote

Are you using RO water or tapwater to mix?
If the latter have you tested for phosphates?
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Liveinabox419
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Joined: 21 Feb 2006

PostPosted: 2009.08.03(Mon)13:45    Post subject: Reply with quote

I use R/O Saltwater that I buy pre-mixed from the LFS, but for top offs I just use tap for conveniance, which tested zero phosphates.

I don't have a skimmer so I'm assuming that plays a role in that? But I'm most likely going to purchase the Taam Rio Nano Skimmer.
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FloridaBoy
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Joined: 04 Jul 2004

PostPosted: 2009.08.05(Wed)11:50    Post subject: Reply with quote

Just a few Q's...
Is that "algae" brown or green?
How long has the tank been set up?
Have you tested for nitrates as well?

A good skimmer will help reduce a lot of those dissolved organics people often encounter in this hobby.

Just for reference;
you might want to take a look at the recent discussions on adding organic carbon sources like Bio-Calcium, I have not done this myself but I think Dusko has and his tank looks great, see the two links below:
http://www.aquahobby.com/board/viewtopic.php?t=55702
http://www.aquahobby.com/board/viewtopic.php?t=54132&postdays=0&postorder=asc&start=20
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MarkLehr
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Joined: 09 Dec 2004
Location: Louisville, KY

PostPosted: 2009.08.08(Sat)7:40    Post subject: Reply with quote

Another very simple tip to help control phosphates is to eliminate all forms of mechanical filtration. If you have filter pads anywhere, take them out!
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Liveinabox419
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Joined: 21 Feb 2006

PostPosted: 2009.08.23(Sun)19:11    Post subject: Reply with quote

To start, the tank has been running for about a year and the algae is green (it might be hair algae). But these are the adjustments I've made to my tank:
-Traded FlameHawkish for goby and pistol shrimp, and 10 blue leg hermits.
-Added a Taam Rio Nano Skimmer that has really worked well.
-Started using RO water instead of tap for topoffs.
(I tried PhosGuard by Seachem, but it seemed to damage my
green cup coral, so I removed it).
All this has worked well. I see the hermits constantly munching away and eating all the algae off the rocks, plus the levels have dropped.

I didn't know mechanical filtration caused phosphates? I mean I heard about nitrates but my nitrates are zero.
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28 gallon freshwater

29 Gallon Reef Tank: 1 Black Percula, 1 TR Percula, 1 Yellow Watchmen & Pistol Shrimp, 1 Six-line Wrasse, 1 Cleaner Shrimp
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MarkLehr
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Joined: 09 Dec 2004
Location: Louisville, KY

PostPosted: 2009.08.29(Sat)8:56    Post subject: Reply with quote

Liveinabox419 wrote:

I didn't know mechanical filtration caused phosphates? I mean I heard about nitrates but my nitrates are zero.


Any place that detritus accumulates will cause an increase in phosphate levels. The easiest place for detritus to "settle" is on filter pads. Removing filter pads and socks, or cleaning them DAILY, will help tremendously in your battles against algae.
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