Adding drainage layer to ZooMed 18x18x24

[DCrews]

Hi all:

I am thinking about adding a drainage layer with HydroBalls to my ZooMed 18x18x24 terrarium. I'm wondering how many bags of HydroBalls I should buy for this? Eyeballing it, I'm thinking it will take about four bags, but I'm not sure. Has anyone ever done this? How many did you use?

Thanks for your help.

[S13]

Wow that much? My 12x12x18 only required one bag when I thought it would've need two. I'd probably say 3 at the most. If you want to be safe get 4 and if you have a spare just save it for a future project. That's what I'm doing with the spare bag I got.

[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.