I have figures out that the tank I am working with, I am not going to use the bulkheads, I know I can take them out and silicone glass over the holes, but I am looking for other options if any?
Since these bulk heads are a weird size, and I would have to cut of the barbed part I'm not sure I can just go to home depot and get a cap.
SO what could I stick inside the bulkhead that would make it water tight?