Hi all, I have a very specific question regarding the splashing tetras Copella arnoldi. I have set up a riparium specifically to accommodate these fish (see pic below), along with a group of bronze corys which are already in there now. I know these fish leap out of the water to spawn and I have read in several forums that aquarists have lost fish through small gaps in their lids. However, I have read from other sources that the fish can "only" jump up to 10-15 cm from the surface. In my riparium, the distance from the surface to the open top is 36 cm (~14"). So my question is this: Do I need a lid in my tank? Thank you in advance for your replies!