Keeping your PO4 up? How?

[WIReefer]

So struggling for a long time now on keeping my PO4 up usually reads around 0.02-0.03 (Hanna ULR) tested today and it was 0.01. Need some suggestions on getting it higher. Have tried almost everything but dosing it. Added more fish fed real heavy seems to help a tad. Tank is a 55 gallon with 30 gallon in sump been running for a year and half. Sump only has live rock and filter socks that’s the only filtration in tank. Suggestions would be awesome!

 

[Billldg]

I use NeoPhos with great success.

 

[WIReefer]

I use NeoPhos with great success.

Thank you will have to try it out!

 

[Caseyoidae]

I use 2 tablespoons food grade trisodium phosphate diluted in a gallon of rodi water. Works awesome and $7 makes a ton! Came recommended from many on here. I dose 10ml in my 40 gallon daily. Go slow, seems to work better on dosing pump as far as stability

 

[Randy Holmes-Farley Verified Community Expert]

I recommend a DIY (like the product above) since you know the composition and minimum purity (unlike, for example, NeoPhos). . It is cheap and easy.

 

[blasterman]

I use Seachem flourish phosphate.