Adding drainage layer to ZooMed 18x18x24

[DonLisk]

Hi DCrews,

4 is to many. I did as you and thought 4 until the water got to it and it raised up above the lower vent.
I would get three and put two in to start. If you don't need the third bag then return it.

[DCrews]

Hey, thanks guys. That's good news. I was hoping maybe I was over estimating it. I'll pick up a few bags and get to work.

[NatureLady]

A bit late on this one...but I have the exact tank and I used less then 2.

[kevinp]

you can get a big bag of them at the hydroponics shop for the same price as a few of those small bags at the pet store.

[DCrews]

I ended up getting two bags. Sounds like that will probably work. I'm going to try to get it set up today. Thanks for the help.