Tank stand question

I had a similar problem, the tank must must must be supported on all four edges equally, or you will eventually develop a crack or leak. If hubby wants to use his stand so badly, get a second tank too! For Him! Just don't cheap out here, no mater what else you do the foundation of your tank is a priority. 125gx10lbs=alot of weight!!!

(Just remember your can't build a castle on an outhouse foundation!!!)
 
It appears hubby isn't a mechanical/structural engineer. ;)

His suggestion leaves 47% of the perimeter of the tank essentially unsupported. Until he tells you he's replacing the plywood with a properly engineered cantilever that's designed to provide uniform support around the tank's entire perimeter, tell him you don't buy it. ;)
 
I built my own stands for my tanks and I've never looked back. There are some good DIY plans on constructing a sturdy tank stand frame somewhere in this forum.
 
quick answer

I don't think the steel stand is worth the chance... build a stand... it's EASY

For 125 gallons you can probably do what I did for my 100 gallon tank. Build a structure [however high you want] from 2x6 material [douglas fir or hem fir]. I did the calculations for allowable stresses and the 2x6 material would support way more than you or I will ever need.

I had a post at each corner and (2) at the center of the tank on both faces [front and back].
Run a horizontal 2x6 along the perimeter of the tank over each post
Add a few perpendicular braces [along the short axis] to prevent racking
Sheath the frame with some plywood or OSB
Add a piece of 1" thick rigid insulation [EPS foam] where the tank would sit to help self level the tank

Very simple and strong

Cost me about $30.00 for the screws, wood, and foam

FYI: The tank [if glass] probably weighs 300 lbs [or close to it], the water will weigh about 1000 lbs, and then add the weight of decorations [i.e. rocks, gravel, etc.].
 
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