@DefyTheNorms Your right some have bought the tanks, and is how I pointed out the problem areas and ways to get around it. Like anything if are able to address the issues the tanks work fine, are extremely durable, and look so much better than a hot glued plastic setup.
Once the mantids get a bit bigger the only issue really is feeding, again can be done by hand/tweezers/or in another container solves that. Depending on some mantid species, that isn't a problem anyway as they are such fanatic hunters. Also feeding flying prey to larger mantids (stable/house/bottle flies/moths) may completely eliminate the issue as well as they fly to the top where the mantis is waiting.
I didn't mean to rain on your parade, again a few keepers have the Exo-terra tanks and really like them. Just be aware of the issues with them.
My question is, what is the ideal mantis enclosure?
A ideal habitat is based on the mantid size, ability to prevent issues/or lack of them, easily cleanable, and such. For that it means for most having a collection of plastic and/or net mesh containers - see links below.
Starting off with small 8oz cups or 16oz deli cups for nymphs, followed by 32oz deli cups, then a larger plastic container or mesh net home. Overall the size depends on the species and instar. I've once had tiny
Japanese boxer mantids (Acromantis japonica) that only grew to about 1" in size, so the 8oz cup habitat was huge for them even as adults. See
my post here about the small 8oz cups, and basic builds.
Some of the nicest ready to nearly go habitats I've seen were a small (nano?) fish tank with a solid top lid and even came with a light. The keeper added mesh to the lid, and a ventilation opening, and it looked great.
The container needs to be a minimum of 3 times their length for tank height, and 2 times their length for tank width/length. A bit bigger is always better for substrate, to prevent mismolts due to cramped space, and plus who likes to live in a tiny home.
You can see what is usually sold for habitats visiting these direct habitat links at
BugsInCyberspace,
PanTerra Pets,
MantidKingdom, and
MantisPlace. I say sold as many reuse plastic containers (such as and food plastic tubs), or what they can buy at Walmart or a dollar store; however, this does require diy crafting.
Rebecca I know sells
plastic cookie jars ready to go that have a nice clean look. Incidentally if you notice a mantis is having a molting issue, rotating the jar (without substrate) can give the mantis more room to molt properly in some cases. I've never had that myself but read of a few doing that and saved the nymph, and seems she did too and has it on the description.