[y_sweebeng]

to put in sump tank

[Reefland]

Originally Posted by y_sweebeng

to put in sump tank

Neither. Do a search for bio balls or bio media for more information. The short of it is if you don't frequently clean bio media out they become a trap for waste which leads to nitrate. Cleaning them out reduces the chance for waste to accumulate but it also reduces the amount of live bacteria in the media unless you clean it in saltwater. Personally, I think bio media of any kind is more trouble than it's worth.

Regards,
Scott Z.

[y_sweebeng]

Originally Posted by Reefland

Neither. Do a search for bio balls or bio media for more information. The short of it is if you don't frequently clean bio media out they become a trap for waste which leads to nitrate. Cleaning them out reduces the chance for waste to accumulate but it also reduces the amount of live bacteria in the media unless you clean it in saltwater. Personally, I think bio media of any kind is more trouble than it's worth.

Regards,
Scott Z.

mine is a 3 feet tank +3"DSB +30KG OF LR,i have 460pcs bio ball in my sump,do i need to take them out?

[Holyreefer]

You don't nee to but it is recommended that you do take them out like Scott Z. said they are a trap for Nitrate build up and they aren't recommened. Replace that space with some carbon if your going to use any, or live rock or something!

[Elmo18]

I would also take them out, but take them out slowly, so things will adjust when you take out all that bacteria. I would either do 1/3 , wait a week, do another third, and maybe all by the end of the month.

- Elmo

[GrimReapr1]

I never thought about nitrate building up in bioballs, it makes sense. Now it is recomended you have live rock... well how about in the overflow? Just stick one rock in there or do you put many, and if many any type of live rock or fiji? For my wet dry i have just some carbon and floss that i change out ever month or two with a water change, is that all right?