Yes, an external overflow was what I wanted and was in the original plan. However, I became concerned with where the tank is going to be located (niche in dining room) I would not be able to access the bulkheads if I ever needed to. I consulted with Jake @ River City and he said I needed to do an internal overflow. The internal overflow does take up a lot of room, but I think I would rather have that then have to cut a hole in a wall to repair a leaky bulkhead.
For reference here is the original design I wanted:
That's a good idea, I will move the manifold over the sump.
The siphon drain on the bean animal will have a gate-valve to control the flow. From what I have read the durso and emergency drains don't need valves, but they can be added if you want more control. Since valves are relatively inexpensive I will probably add them.
Yes, that extra bay will be a frag tank and will also have some miracle mud underneath the frag rack. I'm planning on using an AI Sol Blue I have lying around to light it.
This tank is going to be SPS dominant. Just curious on why you would go with with different LEDs? I admit my SPS growth has been fairly slow under BMLs on my 75g, but I kinda attributed that to inconsistent Alk levels I had until a few months ago. Any suggestions on lights? I like the Ecotechs but like everything from them the price tag is quite heavy.
Hmm, I hadn't really thought of this, but it is concerning. I had always heard that with an Air Conditioner you don't really have to worry about evaporation. The wall the tank will be in front of is empty, so perhaps I could run a vent from the tank up through the attic. It would probably need pretty strong fans to push air that far though.
Any chance you have a picture of your setup?