Bleached rocks

[BadFish619]

quick question, just bought a few rocks from a guy who bleached them a week ago and have been in the sun since. Can I throw them in the tank tonight? Rinse them? What's safe? Thank you!

 

[cvrle1]

If it was me, i would put them in some RODI water for few days and test for phosphate leaching. I would also check for chlorine as well, to make sure all bleach is gone.

 

[BadFish619]

Ya I have them soaking now. Think ill put some prime in also

 

[AquaPhilNJ]

One week later that bleach has to be gone. I've used bleach before on rare occasions. I guess I don't understand why it would leach phosphates if it was bleached. Use your best judgement and I think you'll be fine. Good luck : - ]