Looking to add a gravity fed cheap ATO to my students' (3) reef tanks. Anyone know of a hang-on back float valve like Eshopps that isn't $25?
Also if I lift the reservoir up to gravity feed out of it can I run the tube from the bottom of the reservoir up out the top and back down into the tank (like a gravity siphon). Or do I need to have the tube exit the bottom of the reservoir with some sort of mini bulkhead?
Also if I lift the reservoir up to gravity feed out of it can I run the tube from the bottom of the reservoir up out the top and back down into the tank (like a gravity siphon). Or do I need to have the tube exit the bottom of the reservoir with some sort of mini bulkhead?