The previous owner did not run a filter and used loose gravel in the tank (which i found out that he ate some of it).
My problem is that I have no room for a 90-100 gallon tank which would be the appropriate size. However, I was wondering if I could use a plastic pond that could fit in my bath tub. The length is plenty for swimming, and the water level would be enough for him to swim in, but not so that he could crawl out. Has anyone here done that before?
I keep my bathroom very clean, and I would be able to have the proper electrical outlets for the filters and the UVB and UVA bulbs. What kind of filtering setup would work best for this? The tub is about 4' long and 2' wide, maybe 1' -2' tall off the ground.
If this wouldn't work, I have no other idea what I can do. I dropped 200 dollars in equipment just in a filter, basking area, lighting, food, and chemicals. I don't want to have to give him away and lose 200 bucks. Any advice would be appreciated.
edit...
here's a pic of my setup for right now (hopefully temporary)


