When my hand goes in my 29g turtle tank one of the following happens: the baby softshell plays hide and seek because she's always hungry but if my hand is IN the water she zooms to bury her self. Or my frog attacks my finger tips looking for his cube of bloodworms that should be there. Big acf. My two tiny orange cichlids attack! Because even if there's a turtle 15 times their size and a frog 10 times their size, it is still these cave dwelling mbunas that own the tank. One the left half the other the right and they don't let noone trespass be it fish frog turtle or human without a fight and big show of color for such tiny guys.