Basement reinfocement

[Coleus]

Originally Posted by hillegom

How long is the yellow, diagonal beam you will put in?

Was thinking of putting a LVL beem with two metal posts

Originally Posted by StirCrazy

what is the space under where you want to put the tank.

Steve

Future for another tank that hook up with the upstairs tank

[hillegom]

Originally Posted by Coleus

Was thinking of putting a LVL beem with two metal posts

What about putting two beams, either side of the tank from the foundation wall to the two green verticals. Either with your idea of using steel posts or drilling into foundation wall and installing hangers, the same to the green vertical posts.
Then you can install two or more beams right to left, between these beams with a hanger like the ones used here
http://www.ilevel.com/roofs/r_MicrollamLVL_beams.aspx
this way, you would not lose too much height in the basement
you would use 2x8 or 2x10s (more research needed here.

This would only hold up your existing floor joists. As mentioned already this would not support the plywood floor that the tank sits on.

[Myka]

Originally Posted by Coleus

Thanks for everyone inputs. The house is 7 years old and it has title on the top floor.

Is there tile directly under the tank? If not, I still don't think you need to reinforce. A 7 year old house will be built to a standard that a fish tank with a mere 12-13" water depth is nothing to worry about especially with the perpendicular walls so close to the tank (as it appears in the diagram anyway). If there is tile right under the tank, then I think Steve's suggestion to run the support beam along the foundation wall is the best bet. You need to protect the wood from moisture though if it will be in contact with concrete.