Well as the title says really, i just recently bought the Juwel Lido 120 litre tank, and at the moment i have 3 Blue tetra's 5 Black tetra's and 3 Guppys in my old tank.. while i wait for my new tanks bacteria level to build up and stuff, so while i wait im thinking of getting some more type of fish but im not sure which? i was just wondering if anyone can help me out please. I wanna keep the same size fish as the Tetra's and Guppy's so any suggestions would be great. Thanks Sam.