Hi to all MFK's 
In the introduction thread I was asked to show some pic's of the construction of my 740 gallon tank. So.....here the story goes!
Currently I've got a 130 gallon tank (160x60x50 cm). It's a tank "Dutch style" so with lots of plants. Off course I always wanted a bigger tank (who doesn't?). Sooo..when I bought a new house, I made sure to buy one that allowed a new bigger tank in the living room.
The living room in the new house has a lowered area with a sloping roof above it with some large windows. Very well suited to place a large tank underneath it and make use of the available day-light.
At first I looked for a tank made of glass. But the prices for a big glass tank turned out to be sky-high! More than 3500 euros for a 650 gallon tank. So what next?
Surfing the internet I discovered this forum and soon found out that a plywood tank would be a good and cost saving alternative.
The dimensions of the tank would be dictated by the available space and height and the standard dimensions of the plywood sheets. Then finally made the first step and bought four Okoume plywood sheets (2500x1250x40 mm). The tank dimensions are 2500x1250x1000 mm
In CAD it then looked like this.
I wanted a water height of approx. 90-100 cm. Therefore I have no room for a sump underneath the tank. That made it necessary to integrate the filtering in the tank itself behind the background. The tank itself stands on concrete blocks. Man!! they were heavy! weighing about 80 kgs each!
Good fitness training lifting them in...
Cutting the plywood sheets was easier than I thought! one Saturday and the sheets were cut and could be loosely placed together. I hope the pic's give some idea.
In the pic you can see that because of the low roof line I had to fabricate some plywood boxes in the upper corners.
Sitting on the sofa, I can already dream how it will finally look

In the introduction thread I was asked to show some pic's of the construction of my 740 gallon tank. So.....here the story goes!
Currently I've got a 130 gallon tank (160x60x50 cm). It's a tank "Dutch style" so with lots of plants. Off course I always wanted a bigger tank (who doesn't?). Sooo..when I bought a new house, I made sure to buy one that allowed a new bigger tank in the living room.
The living room in the new house has a lowered area with a sloping roof above it with some large windows. Very well suited to place a large tank underneath it and make use of the available day-light.

At first I looked for a tank made of glass. But the prices for a big glass tank turned out to be sky-high! More than 3500 euros for a 650 gallon tank. So what next?
Surfing the internet I discovered this forum and soon found out that a plywood tank would be a good and cost saving alternative.
The dimensions of the tank would be dictated by the available space and height and the standard dimensions of the plywood sheets. Then finally made the first step and bought four Okoume plywood sheets (2500x1250x40 mm). The tank dimensions are 2500x1250x1000 mm
In CAD it then looked like this.

I wanted a water height of approx. 90-100 cm. Therefore I have no room for a sump underneath the tank. That made it necessary to integrate the filtering in the tank itself behind the background. The tank itself stands on concrete blocks. Man!! they were heavy! weighing about 80 kgs each!
Good fitness training lifting them in...

Cutting the plywood sheets was easier than I thought! one Saturday and the sheets were cut and could be loosely placed together. I hope the pic's give some idea.

In the pic you can see that because of the low roof line I had to fabricate some plywood boxes in the upper corners.
Sitting on the sofa, I can already dream how it will finally look

