240 gallon stand..my stand paranoia or legit?

  • We are currently upgrading MFK. thanks! -neo
be careful - from what I have read, anything pressing UP against the bottom glass panel (while the weight of the water/rocks etc) is pushing DOWN can crack the bottom of the tank.

that is the reason why Aqueon (not sure about marineland) does not recommend the use of foam under their tanks (which have the braced 'floating' bottom)

the bottom panel was designed to be floating and not having pressure exerted from the bottom up.

I would contact them and ask them before you build that kind of support.

you don't want to end up with 220g of water on your floor..

ps please post their response if you do. I would be very curious to see what they have to say about something like that.
 
12 Volt Man;3044047; said:
agreed. glass tanks technically only need corner support, because glass, unlike acrylic, doesn't sag.

however, most stand only give perimeter support which is fine.
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I think those pics are from a store about an hour away from me. :eek:
 
got it guys...thanks:)....I have to go back next week and pick up a lid cause they broke one during transport....i'll make mention just to see what they say
 
12 Volt Man;3045184; said:
your right. I guess I should be more clear. Glass tanks do not sag to the same degree that acrylic does, thats why most glass aquarium stands have only perimeter support and hold up fine for years and years. after all, we have all seen glass bow.

if you tried that with acrylic, (and someone with an acrylic tank correct me if I am wrong) you would end up with a big mess..
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My Clarity Plus Acrylic tank is not supported fully. Only the side edges, rear edge, and the 5 braces that divide the sump support the tank bottom - nothing on the front edge at all just the dividers. The sump/stand is also acrylic and made by Clarity Plus, this is how I got it as a set. It's been filled and emptied a dozen or so times by me in the last 6 months or so I've had it but been full 90% of the time. The tank bottom does sag between each of the dividers but it has obviously been like this for years since I got it used. I'm including a pic of under the tank in the sump, this is one of the sections of the sump - you can see a divider on each side.

DSC_0077.jpg
 
Those cinder blocks are kinda scary looking. I only say that because they are laying on there sides which are incredibly weak. I see the masons on my jobs lightly tap a ''concrete'' block not a ''cinder'' block and break a piece off quite easily.
 
ii would say reeinforce it with 2x4s or whatever size those peices of woods are that is on your stand.
 
There's a shop in San Francisco that has acrylic tanks set up almost identically to the pix that 12 Volt Man posted. I think they are 55 gallon tanks and they are sitting on cinder blocks (only the ends of the tank are supported) just like the glass tanks posted above. The tanks look like they have been there forever. I'm not saying it's safe...I would personally never set an acrylic tank up like that. I'll try to remember to get pix next time I go. When I first saw it, I couldn't believe it.
 
Is the stand made out of 2x4 or 2x3 ? Looks like all 2x3's or is it smaller ?
 
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