Is 0.1 phosphate too much?

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Perthegallon

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So 0.1 Po4 is ok? Should I lower it? And what can I do to lower it?
so there are many ways to lower it but I would keep it exactly like you have it but you can use
-carbon
-less feedings
-water change
-a liquid po4 remover (this is what I do to keep it stable)
-run a skimmer if you don't have it
-use filter socks
-get corals
 
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fish farmer

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What type of corals? I have softies and a hammer coral that were growing with phosphate levels at 1ppm....not that I'm advocating that. My nitrates were around 30 ppm at the time as well. Interesting thing was when I dropped my levels over several months my hammer didn't like the change.
 
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Timfish

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It's fine. Here's 4 videos I reccomend new aquarists watch: For what it's worth research done by SOuthmpton Univeristy identifed a minimum threshold level of .03 mg/l. In case you're interested there's a list of papers on corals and phosphates if you want to familiarize yourself with it.

Forest Rohwer "Coral Reefs in the Microbial Seas"

Changing Seas - Mysterious Microbes

Nitrogen cycling in hte coral holobiont

Richard Ross What's up with phosphate"

An Experimental Mesocosm for Longterm Studies of Reef Corals

Phosphate Deficiency:
Nutrient enrichment can increase the susceptibility of reef corals to bleaching:

Ultrastructural Biomarkers in Symbiotic Algae Reflect the Availability of Dissolved Inorganic Nutrients and Particulate Food to the Reef Coral Holobiont:

Phosphate deficiency promotes coral bleaching and is reflected by the ultrastructure of symbiotic dinoflagellates

Effects of phosphate on growth and skeletal density in the scleractinian coral Acropora muricata: A controlled experimental approach

High phosphate uptake requirements of the scleractinian coral Stylophora pistillata

Phosphorus metabolism of reef organisms with algal symbionts


Sponge symbionts and the marine P cycle

Phosphorus sequestration in the form of polyphosphate by microbial symbionts in marine sponges

Here's fig 4 from the paper on Phosphorus meatbolism;
DIP DOP POP.jpg
 

MERKEY

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Hi, my phosphate is at 0.1 but the corals are wide open and very happy, I’m not sure if 0.1 Po4 is too much can someone please help me?
The short answer is NO it is not too much.

The long answer has to do with the balance of your tank.

If po4 is held at .1 then nitrates need to be a little higher.

Stability over a single number is also key.
 
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Miklo_Miklo12

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What type of corals? I have softies and a hammer coral that were growing with phosphate levels at 1ppm....not that I'm advocating that. My nitrates were around 30 ppm at the time as well. Interesting thing was when I dropped my levels over several months my hammer didn't like the change.
I have lots of lps I only have about 3 small sps frags
 

Pistondog

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I have lots of lps I only have about 3 small sps frags
0.1 is fine, if it gets above 0.2, maybe add some nopox, 3 ml per 100 gallons per day. You can go up to 6 ml per day after a week if necessary.
Nopox is carbon dosing which builds bacteria that consume nitrates and phosphates. I make my own nopox from vodka, vinegar and water.
 
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Pistondog

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Nopox is a carbon source. Bacteria use it with nitrate and phosphate to reproduce, trapping the nitrates and phosphates inmore bacteria. To remove, the bacteria need to be skimmed out.
 
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sp1187

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relax. do nothing. like @fish farmer I don't advocate it but my PO4 is 1.0-1.4 and NO3 is 40/60.
there are some corals I can't keep because of the parameters, but the ones I do keep are growing explosively.
 

CanuckReefer

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relax. do nothing. like @fish farmer I don't advocate it but my PO4 is 1.0-1.4 and NO3 is 40/60.
there are some corals I can't keep because of the parameters, but the ones I do keep are growing explosively.
Well said.
 

mikereefing

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Like everyone else said, 0.1 is not too much. My acros start to show "burnt tips"/STN at tips when my phos drops below 0.05. Ever since upping the feeding and keeping it between 0.07-0.12, my acros have recovered. I'm running an alk of 8 too.
 
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