I got the 30mm x200 mm version today
this one
https://www.aliexpre....25a94c4dL4BsVX
It's much different from the 25mm version i got earlier, different company.
The floor layer is flat, so it's thicker and better for visibility, and large queens have more turning space.
The subtrate is finer and you get a choice of colours, I went with a fairly yellow one, and it looks more tan, yellow sand like, perfect colour to see the ants and brood.
The wall against the hydration chamber is much thicker than the 25mm one, so it should much less wet
Now to see how long it takes to spread the water, and wether it holds it too much if condensation builds up
Also these rubber caps are rubbish, since you get a vaccum and it is hard to remove without disturbing the ants.
You can replace them with silicon plug versions I've seen on Aliexpress.
Or maybe don't push it all the way down...or poke a small hole with a pin at the top...
click to enlarge
Edited by CoolColJ, May 27 2018 - 8:34 PM.