As most of you know, I am building my first viv. I am needing assistance on finding the best submersible pump. Based on the plans and using the calculator I got here: Tank Volume Calculator . I can have a MAX of 7 gallons of water before the water will reach the egg crate. I would like it to have a head height of 36" just in case. I don't think I will end up having the water come out at the very top but just in case. I know to get one I can change the speed on and to look at the head height. What brands do you all recommend? Which ones work best for you? Do I really need to worry about gph? Most pumps that I have come across that have the head height also have a high gph. This has me really stumped.![]()