Bit of a random request so apologies. I work in a care home for the elderly and my employer (who loves tropical fish) has decided that from a sensory point of view, a fish tank is what he would like to install. I'm no expert by any means but as he knows I've got my 2 tanks, he's said he'll buy the equipment and fish but in my now additional job role of "keeper of the fish" I've been asked to choose the stock and be responsible for maintenance. The tank will be no more than 2ft long and I'm stumped as to what fish to stock, substrate, plants etc. Needs to be low maintenance. If there is ever such a thing in fish keeping but also needs to be colourful and active for the sensory aspect. My employer wants tropical and I also need to find a way of stopping residents opening the feeding hatch before the lady in rm 12 starts feeding the fish her jelly babies!