Icp test loosing acro collection

Rick j

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Any input on icp test po4 bottomed out the. Dino showed up then rtn/stn burned tips algae on tips I e checked throughly for pest. Stray voltage every morning a few dead

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Timfish

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Sounds to me like phosphorus deficincy. I'd try raising PO4 above .03 mg/l. Here's some links to refference to phosphorus in reefs systems:

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


Fig. 4 from the above paper "Phosphorus metabolism of reef organisms with algal symbionts"
DIP DOP POP.jpg
 

Nick Steele

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I’ve had the same happen recently without the Dino’s. My phos and nitrate bottomed out slow stn around my sps bases. Then a little tip burn on my SSC. I noticed my alk went from 8.3 up to 9.5 idk how or when but I slowly lowered back to 8.3 over a week. Also I now dose phosphate up to .05 daily it’s been 0 every time I check still. And in the beginning I dosed nitrates to 7ish. The stn has stalled and I’m hoping for a bounce back
 

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