Phosphates are back.

[fernalfer]

So i had my Marco Dry Rock which was leaking phosphates really bad in 2 44 gallon brute containers filled with RODI Saltwater, heater, and powerhead for almost 3 months. I was dosing it with phosfree to rid it of its phosphates. I started with a reading from the Hanna Checker of 0.123 and got it down to 0.02 which was great. It had stayed between 0.02-0.03. Now the rock is in my tank as i'm starting my cycle and just went to check the phosphates and they are back up to 0.09. Not sure how to deal with this in tank. I have no livestock, corals or inverts obviously because i'm cycling. What do you suggest is the best course of action for lowering phosphates before i start stocking.


Not sure if i can dose the Phosfree because the tank is fishless. Not even sure i feel comfortable doing that anyways.

Any thoughts would be appreciated.

 

[sbash]

I find the dry rock will leach phosphates for some time, and may continue to after the initial cycle is complete.

How are you 'feeding' the tank during the cycle? (i.e. pure ammonia, raw shrimp, fish food, etc)...

 

[fernalfer]

I find the dry rock will leach phosphates for some time, and may continue to after the initial cycle is complete.

How are you 'feeding' the tank during the cycle? (i.e. pure ammonia, raw shrimp, fish food, etc)...

Pure ammonia

 

[p.pep85]

i used dry rock in my tank my phosphates were high had gha and ciano every where. after about 3 months over night it all went away and has been five ever since and i changed nothing it will all balance out.