Basement reinfocement

[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.