^^ Cost. 2 by 4s are way cheaper than 4 by 4s for one but I think the main reason is stand design.... You want your stand to be capable of holding the weight you put on it if you were to remove all the screws. In otherwords you should NOT be counting on any screws to hold the tanks up....
I hate to disagree, but I think 2x4 is far too light. Those are some very large tanks to sit on such light material. If that span were to sag even a little bit it could easily break a seam on an acrylic or crack a glass tank. If you want to save a little on lumber you could use 2x4 where it is bolted to the wall. For the front I would use a doubled up 2x6. The price difference is only a few dollars, well worth it in my opinion.
I attached a photo of one of my DIY stands for a 90 gallon tank. I know it is a bit of overkill, but it sat in a classroom so I wanted it to be extra solid.
A stand should be well built I agree. but a 2X4 will suffice. Any 2X4 of at least #2 grade should have a very small fb extreme. Especially with short spans, a verticle placed board will begin to crack before it bends, IF it is kept at the proper moisture rating. Once a board is allowed to absorb excess moisture that all goes down the drain.
Also, not to argue with you knowdafish, but usign lost of glue does not aid really. Enough glue to lighty cover both surfaces is good and then a lot of pressure should be applied to the bards. Its not really the amount of glue but doing it right that gives your joint its strength.
Also, not to argue with you knowdafish, but usign lost of glue does not aid really. Enough glue to lighty cover both surfaces is good and then a lot of pressure should be applied to the bards. Its not really the amount of glue but doing it right that gives your joint its strength.
By "alot of glue" I meant for him to buy enough glue for all the joints! No glue was mentioned at all in the initial comments by jelly. And BTW.....you don't want to use "alot of pressure" when glueing up wood. "Alot of pressure" squeezes to much glue out of the joint!!
^^ It would take very, very much pressure to push the amount of glue out of the joint. The pressure is applied so that no externals(air) get in between gaps in glue, even the tiniest amounts. I really do not want to be an argumenative jerk but I pay 28,000 dollars a year to learn about this stuff and have been in construction since I was 15. btw knowdafish i know its off topic but what kind of aro is that? I want to get my first one but know nothing of them.
unfortunately, it is one that can land you in jail if you are caught possessing, transporting, buying selling or cause to do any of the above, within the boundries of the USA...it's an Asian Arowana, super red I believe...
unfortunately, it is one that can land you in jail if you are caught possessing, transporting, buying selling or cause to do any of the above, within the boundries of the USA...it's an Asian Arowana, super red I believe...
We here in America seem to be screwed out of a lotta cool fish. Especially in Indiana. oh my gosh you should see the list of stuff were not allowed to have. No natives essentially, many turtles out of the question. I didn't know about the natives till I was about 17, at which point I had 11 different small tanks in my basement all with bullheads, sunfish, lm bass, etc. DNR woulda had a field day at my house.