New Tank-undetectable Phosphate

[soreefed]

Hello y’all!

I’ve had a nano reef tank setup for about 45 days now. Started with dry rock, live sand, and fritz turbo start. I had a solid algae bloom and it was manageable. Added snails crabs, and started feeding my two fish less. Algae went away fairly quick, but as I was testing my water I found that my po4 was undetectable, with nitrates around 12ppm.

my thought process was to increase feeding, but that has caused an algae bloom again. My corals and fish are looking well and happy so I am hesitant to change much when it’s looking good.
Based on info from this forum I’ve read that I should try to avoid 0phos for long periods.

Should I focus on increasing po4 or just let things run it’s course?

mixed reef tank, with sps and soft coral. Fire fish and clownfish.

nitrate-12ppm
Phos-undetectable
Calc-400ppm
Mag-1400ppm
Alk-8.6
Salinity-1.025
Rack filter with foam filter, biomedia, purigen, and chemipure blue in the heater chamber.

not exactly looking for a fix, but just wanted to discuss the direction I should be going in or general advice.

thanks!!

 

[Randy Holmes-Farley Verified Community Expert]

The rock is likely binding the phosphate. I’d personally look to dose phosphate until it became detectable so as to not risk Dino’s.

 

[Biglew11]

The chemipure blue also absorbs phosphates. I would does phosphates to .03-.1 ppm or remove some chemipure blue or switch over to a plain carbon.

 

[soreefed]

The rock is likely binding the phosphate. I’d personally look to dose phosphate until it became detectable so as to not risk Dino’s.

Thank you for the reply. I’ll have to drop by my lfs and pick something up. Cheers!

 

[soreefed]

The chemipure blue also absorbs phosphates. I would does phosphates to .03-.1 ppm or remove some chemipure blue or switch over to a plain carbon.

I think I’ll remove chemipure and then dose phos if It’s still undetectable after 4-5 days.