Originally Posted by revhtree
1. Can the standard tanks from walmart be drilled?
Only if you're sure it's not tempered. Many tanks have tempered glass bottoms but not always the sides. You can use a <<dremel>>
to cut the hole.
2. Where would be the best place to drill the hole?
Top left or right corner, whichever is more convenient based on the sump location. Unless your sure the bottom isn't tempered and then you can do it in a bottom corner which would be easiest for plumbing and aesthetics. Bottom drilling would require a corner overflow unless you installed a stand pipe.
If drilled on the back top side, you are relying on gravity instead of the suction of an overflow so a little larger would work best. I would go Â¾" (300ish GPH
). You can then build a <<little overflow box>>
around the bulkhead and glue it directly to the glass. It will prevent a "gurgling" noise and allow for a smoother flow of water. The hole size will also depend on if the return will be the sole source of flow. If no powerheads, you would want to go to a 1" bulkhead (600ish GPH
4. The tank will be about 4 ft from the main and have a head height of 3 to 4 ft. What size pump would you use? Also keep in mind that the other tank is just around a corner...
Are you pumping the return water from the main itself or a sump?
What are the main corals being propagated?
I will probably take most of the lr out of the prop tank after I set this up but leave a little just in case of a power outage...Smart?
Up to you. Since there is little to no ammonia creation in a prop tank (no fish) the biofilter will be quite small. I would keep it simple and use basic surfaces (shelves,piping etc..) as biomedia, not rock.