In work, I have a 10 gallon tank with Endler Guppies, 3 Cory Cats and pond snails with Amazon dwarf hair grass, Moneywort and Red Wendtii. My boss recently brought in 3 tanks, another 10 gallon, a 5 gallon and a 20 gallon long. I really don't want to do another planted for the 10 and 20 as the...