I am sorry, but I can't assist with that.
 
An aquarium, if done correctly, should be supported around the edge and 20 mm in. Look at all the classic aluminum tanks.

My 325-liter aluminum tank stands on an akvastabil original bench, which is made of 16mm MDF for both the top board and other parts of the furniture. The furniture is designed so that 4 pieces stand vertically with a gap of about 40cm between each other, then a top board and a bottom board that has 2 adjustable legs at each vertical board. In this way, the bench supports only four places across the tank and not the entire surface.

The most important thing is to have the top of the furniture level, and if you're unsure, a support of 10-20mm polystyrene is preferable.

Image example of a small aquarium furniture in chipboard: http://www.tropicalzoo.se/Abildakv/bankpanorama.jpg

Here is a thread on the subject: http://www.ciklid.org/forum/showthread.php?t=45018&highlight=vattenpass read the whole thread!
 
no problem, it suffices as it is, I'd say. However, the bench must be entirely balanced so the top plate doesn't warp. Check that the plate is level with a spirit level. Place a foam underneath which you hide by wrapping a round of electrical tape around it; this absorbs any minor settlements in the bench or floor. If you place the aquarium directly against a flat surface (100% contact), then even a tiny grain of sand is enough for the bottom pane to crack.

However, it might be appropriate to treat the plate before the aquarium is in place to prevent any moisture from damaging the appearance.
 
So if I understand you correctly, I should do it like this:
1. Oil the bench.
2. Check with a spirit level that it is level.
3. Place a 55x55x55 cm MDF board that is 16mm thick.
4. On the MDF board, place a 10-20mm polystyrene sheet.
5. Put the aquarium on top of everything.

Correct?
 
Something like that, but I think you can probably skip the MDF, it doesn't really stiffen anything significantly.

//Palm
 
I was thinking that the bottom of the aquarium will otherwise hang out over the edge of the bench by 5 cm on each side. It is a full glass aquarium. So no aluminum strips supporting the edges.
 
That thing with overhang can be sensitive. We had an aquarium that overhung by 20mm. It worked, it didn't break, but when I mentioned it at the aquarium store once, they looked horrified. So guided by their facial expressions for 20mm, I would probably be cautious with 50mm.

I doubt you'll get any significant improvement with any form of board at all. Regardless of material choice. Unless you go in with something ridiculously thick, like 50mm thick or so.
 
I am also considering a 50 mm massive slab if it is to be supportive underneath the entire base.
 
Martin_Blomberg said:
I was thinking about how the bottom of the aquarium will otherwise hang over the edge of the bench by 5 cm on each side. It's an all-glass aquarium. So no aluminum strips supporting the edges.
Careless of me to miss that with the overhang.
I would probably add at least 30mm MDF or laminated wood.

Are you going to use saltwater?
 
hempularen said:
The thing about overhang can be tricky. We had an aquarium that overhung by 20mm. It worked, it didn't break, but when I mentioned it once in the aquarium store, they looked horrified. So judging by their facial expressions for 20mm, I would probably be cautious with 50mm.

I doubt you'll get any noteworthy improvement with any type of board at all. Regardless of material choice. Unless you go for something ridiculously thick, like 50mm thick or so.
Did Hemmapularn use Styrofoam under the tank that cracked?
 
No, I don't dare venture into saltwater. I have a Malawikar and this one is for my son. Community aquarium with an excessively oversized external filter (so the tank can survive when my son loses interest, periodically...).
 
Thought I'd announce the result.
Passed by the saw department at Bauhaus and asked for a scrap piece of 25mm MDF. They cut it precisely, and all for 20kr :-)
On top of that, a 10mm styrofoam board and on top of that the aquarium. Also took the opportunity to level the table.
 
And now almost a year later, the aquarium still stands stable without any problems. It seems that the 25 mm MDF board holds.
 
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