what size hole?
 

OK, so I'm going to make my own tank. What size hole do I need for a 1.5" bulkhead?

IIRC, a 1.5" bulkhead needs a 2.5" hole.

Are you sure its not 6.75"... :razz:

bulkhead, not my head!!

i wish i had 1.5" bulkheads :frown:

"BULK" head
 

with this kind of certainty......maybe the tape measure approach is best?? :razz:

2.5"

Steve

2 voted for 2.5, must mean that's right. Thanks guys.

bulkhead
 

2.495" JKing
what tank are you making Brad? Give an update :biggrin:

I just installed a couple of these, They take a 2-3/8 hole

Re: bulkhead
 

Chin, I'm building a reverse 90, oak stand & canopy. 2 Tunze streams, MAG 12 return and a 1" seaswirl. 75 pounds of rock, tops and 2 x 400w radium = actinics for lighting. Euroreef in the sump and my Ca reactor under stand.
We're redecorating and we've decided something smaller and less industrial looking will suit the livingroom better.

I can buy glass wholesale, so I'm going to try my hand at building the tank myself, should be fun!!

Re: bulkhead
 

Whats a reverse 90..?? :confused:

Re: bulkhead
 

Ryan, it's a 90 on it's side. Essentially 48"l x 24"w x18" deep. This eliminates the extra height for short armed persons such as myself, while giving a greater front to back space for rockwork.

Ahh... seems like an ideal solution.
Your clams will love you with an 18" depth on your tank. :cool:

Especially under a pair of 400w Radiums. :eek:

Brad, you going to run a single 1 1/2in. overflow? I run a pair of 11/4in. with a Mag 12 return and it seems just about the right amount for them to handle.

Doug, I haven't quite worked out whether I'll do 1 or 2 holes. My 155g has only one, and it works just right with the MAG 12. I might do 2 just because, but 1 would probably be OK.
Now I just need to decide corenr or centre. If I go centre, I'll have to pick up a second seaswirl, just to make things even. corners, and I can use a single seaswirl in the centre. decisions, decisions....

coast to coast.. :mrgreen:

I am currently running a 1.5" durso with a mag 12 and runs spectacularly. not good, spectacular :lol:

No, wouldn't even consider it.

really how come?

Too much overflow for me. I wouldn't want a box inside the tank that went side to side, adn I wouldn't want anything hanging off the back. 1 or 2 vertical stacks inside is much cleaner looking, IMO.

I have a center in my 140. Would much rather have it on the side. seems to be in the way in the middle.

in a small tank it would be very imposing.

Steve

my 90 is in the center and i dont really like it much either.

If I go with the centre, I would build the overflow box with angled sides, I think that would make it blend more. However, my plan is to have an open middle tank and this would cut 6" out of the centre area. Maybe 1 or 2 corners will be better. I think for my needs, one on the left corner will do it.

I had a V shaped center overflow in my 180. It was ok, but I still prefer the corners better.

But thats wall built, where I dont view in the ends.

I just made a smaller sized rock wall around it. Why not do something like a homemade rock plaster on the overflow, then one could still leave the center open.

I also thought the center V would be better on my current 5ft. tank, with two halides, but on a 4ft. guess it does not matter as much.