Terrariums, do it right the first time.

[Regius_049]

Would I be able to do bioactive in a T10? I wanted a T12, but it was twice the price.

I think you can do it but it will require some modification to bolster the front to shore it up for the substrate layer, drilling the bottom of the enclosure, using only a RHP, and not choosing a lighting option from AP as you would put your own in.

Basically this, you can indeed do it, but I don't think you are going to like the final result once your drainage + substrate are in. Why? After adding those two things, you're only going to have like 8-10" of space to work with, not including lighting or heating elements on the ceiling. Animal plastics can make a customize T-whatever to suit your needs, similar to what this user did.

In my experience, you really want something at least 18" high if you are aiming for bio-active. It is just too annoying to manipulate the contents of the enclosure, get your snake in and out, and not to mention it severely limits your planting options. You'll also notice most dart frog keepers, who extensively use exo-terra cages and bio-active setups, almost never use the 12" high option. It is always 18-24" high, even with more terrestrial species.

The title of this thread is very fitting - If you're going to try bio-active at some point in time, save up and buy the T12 for $140 more, you'll be much happier in the long run. It's tempting to buy the shorter one because it's cheaper and takes up less space, but the final result, in my experience is less rewarding.