Suggest you look at a FW
set up. I would be very hesitant to put sw
in a class room especially when it needs to be moved on a regular basis.
, nano are every as difficult to care for as a larger system because the water requirements need to be excat and you cannot slack at all on maintenance.
I once set up a 30g FW
for my sister in law in a classroom with hardy cichlids. It lasted for years because the fish were more tolerant and FW
is much easier to top off when needed andd maintain overall. Not to mention the cost if things do not work out.