Adding rocks to an established tank and phosphates

[Duncan Tse]

2 year old 37 gallon mixed reef with about 20lbs of live rocks

Cycled dried rocks in a bucket with a heater and powerhead for 3 weeks and added about 10lbs of that into system

Before my phosphates was at 0.1ppm and now its at 0.2ppm after 2 weeks of adding rocks

I suspect the new rocks are leaching phosphates out.

What should I do at this point

Gfo? Reduce feeding? Do nothing and wait it out?

Current filtration is carbon dosing NoxPox at 1mL/day, protein skimmer, and weekly 10% waterchanges.

Seems like corals aren't being affect by this and everything is healthy

 

[marito09]

I would waited out and see if it hits anything higher then 0.02 then I would do just higher percentage of water changes and see. My 2 cents

 

[Duncan Tse]

I would waited out and see if it hits anything higher then 0.02 then I would do just higher percentage of water changes and see. My 2 cents

I did have a bad experience with gfo before when I used too much and caused my PO4 to be reduced down to 0 and some of the corals were looking unhappy. Yea so many options right now but I'm just not too sure on what to do.

Worried that if it gets any higher my corals might suffer

You can clearly see where I added the rocks haha it's all white and clean looking

 

[Snoopy 67]

Agreed on waiting. That 20,000 reef tank on LI runs about .16 with great coral growth.
You do not want -0- on anything we test for. Run your GFO @ 1/2 the suggested dosage.

 

[Duncan Tse]

Agreed on waiting. That 20,000 reef tank on LI runs about .16 with great coral growth.
You do not want -0- on anything we test for. Run your GFO @ 1/2 the suggested dosage.

Seems like the consensus rn would be to wait it out. Would you also suggest to reduce feeding?