i soon to get a new corn snake and it is a very small juvinil and i dont no if i should just buy a tank that it can be in for life or get new ones as it gets bigger.

Baby/juvies usually do better in smaller tanks, they feel more secure. How big/old is the snake? If it is very young still a 10 gallon (or similarly sized rubber maid/sterlite bin) may be the better option, but if it is older you could probably put it in a bigger viv...as long as it has a lot of hides and vines etc., not too much 'open' space.

I prefer bins for all of my growing cornsnakes, just because they really do seem to thrive in smaller, less 'open' environments. My adults get BIG display enclosures, like 4' x 2' x 2' because they're the most active of my snakes, and the ones that seem to tolerate handling the best. If you want to get a big tank and work on it slowly over the next 18 months, you can easily pick up a 12qt sterilite that will last your baby corn until it's big enough to move into the big tank.

the problem is that i cant afford to buy new tanks all the time

so get one sterilite 12qt bin ($3), which will last your corn until it's about 22-24"" long, then move it into a bigger 28qt sterilite ($4) until it's 36" and at that point it should be okay in a big tank, which you can save up for over the 18-24 months your snake is 'growing out' in the sterilites.

It's super cheap, and the sterilites are handy to have around after your snake has grown out of it. I use my spare 6qt and 12qt sterilites as soak/feed bins, and as transportation bins, with the snake inside a bag, inside the sterilite.

yeah that makes sense a sterilite should work fine.

hmm thanks for the advice

Hm, I use 28qt sterilites for all my adults without a problem.