Shaped like this, like the idea of of it but real world use is very limiting. Great as a community tank set up for smaller fish or in my case the solo puffer.
Interior of tank has filter set up in it and it wont hold any fish of any real size if I needed it for a future hospital tank. At least a 40 B would hold my larger fish for a short period if necessary for any sort of treatments.
Again the idea is a downsizing of running tanks with an empty available for emergency. I want to be able to pull an Aquaclear off another tank and basically be ready for anything.