Is 0.1 phosphate too much?

BRS

Miklo_Miklo12

Active Member
View Badges
Joined
Feb 27, 2021
Messages
145
Reaction score
65
Location
91911
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?
 

Perthegallon

Valuable Member
View Badges
Joined
Mar 13, 2020
Messages
1,450
Reaction score
577
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
 
Last edited:

fish farmer

Valuable Member
View Badges
Joined
Nov 13, 2017
Messages
1,956
Reaction score
2,926
Location
Brandon, VT
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.
 
Last edited:

Timfish

Crusty Old Salt
View Badges
Joined
Jul 22, 2012
Messages
1,006
Reaction score
1,398
Location
Austin, TX
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

Cronies
View Badges
Joined
Oct 5, 2019
Messages
7,317
Reaction score
34,841
Location
Washington
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.
 
OP
M

Miklo_Miklo12

Active Member
View Badges
Joined
Feb 27, 2021
Messages
145
Reaction score
65
Location
91911
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

2500 Club Member
View Badges
Joined
Jun 28, 2020
Messages
2,675
Reaction score
5,334
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.
 
AS
OP
M

Miklo_Miklo12

Active Member
View Badges
Joined
Feb 27, 2021
Messages
145
Reaction score
65
Location
91911
I just tested it again to make sure and it’s at 0.25 there was no sunlight so that’s why it looked different salifert recommends to test and look at it with natural sunlight
 

Pistondog

2500 Club Member
View Badges
Joined
Jun 28, 2020
Messages
2,675
Reaction score
5,334
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.
 
Top Shelf Aquatics

CanuckReefer

Simple...Salt, Water, LR, Lighting and Flow.
View Badges
Joined
Nov 18, 2020
Messages
1,186
Reaction score
1,761
Location
Port Perry Ontario
.1 is not too much....watch it, increase water change slightly, if it rises precipitous then MAYBE dose. These dosing recommend drive me nutz honestly....what are you feeding, first off? As @Perthegallon listed, follow that lead.
 

mikereefing

Active Member
View Badges
Joined
May 17, 2020
Messages
117
Reaction score
92
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.
 
BRS

Have you ever had a Angelfish in your reef tank?

  • Yes and it was a model citizen (tell us which one)

    Votes: 139 32.6%
  • Yes but it did nip from time to time

    Votes: 61 14.3%
  • Yes but I had to remove it because it went rogue

    Votes: 29 6.8%
  • No but I would like to try one

    Votes: 122 28.6%
  • No and not interested

    Votes: 58 13.6%
  • Other (please explain)

    Votes: 17 4.0%
Omega Sea, LLC
Top