Originally Posted by Alan79
I have plenty of space for a 75G tank for him in my spare room. I'm thinking of making a DIY plywood and perspex tank for him. I don't own my house though so can't build a pond unless i can devise some way to make one i can drain and move with me. It gets pretty cold in my neck of the woods too. An outdoor pond would come close to freezing solid up here without some method of heating. He's probably the friendliest Comet i've ever owned though so I do want to keep him pretty badly. I'm exploring all options. I'll make a thread when i find a solution to this issue.
Perspex scratches easy, why not glass? 10 mm should be ok providing it isn't too big/deep. I can see a 75 being born soon! Wood will need some pretty heavy duty supporting frames, that could be tank space.
A fish store near me filled a paddling pool for kids with big regular fish, normally offered in most stores.
It was a display so you could see what you might end up with.
I DIY built a few tanks, it isn't that difficult if you are handy, some people are good with the brain some are good with the hands. Which are you?
I used manufactured tank specs to get an idea of glass spec.
Tube or two of silicone, bobs your mothers brother.
If you are residing in UK I know a fairly good online store with reasonable tank costs. Stands extra but if you are handy, DIY.
Ponds like all things constructed can be destructed.