yellow water on 400 gal FO tank

[dominic]

hi guys
I have a 2 year old 400 gal tank ever thing is great but my water is yellow .

anyone know how much carbon to run for 400 gal I cant find any info on how much to run.
thanks

[risin]

There isn't really a formula for the amount of carbon to run. I would do small amounts so you don't have a drastic change. Maybe 2-3 cups in a reactor, change it every week until the water is clear. After that I would only run it as needed.

[billdogg]

If it were my 400g FO, I'd fill a canister filter with as much carbon as it will hold. It'll clear up in a few days that way. Then switch to a reactor to keep the dissolved organics at bay.

Do you have a skimmer? Skimming wet will also help reduce the DO's.

[shifty51008]

http://www.bulkreefsupply.com/reef-calculator

[Bogue Chitto]

I agree with billdogg

[dominic]

thank u