Rule of thumb for buying and selling fish tanks

Most people do. I used to buy used tanks and restore/repair them for resale. I'm having trouble getting broken tanks at a good price.

I recently sold about 40 tanks. For the most part I was getting around $0.60-0.70/gallon on the tanks alone. Wood stand is worth more than metal stand usually. If you have everything but fish, I would say list for $60 and hope you get $50 for it. That would be about $25 for the tank and $25-35 for stand and equip. I would still pass it up at that price, but you may get a few bites. If you don't get any bites after 4 days, relist $10 cheaper.

To compare, I just picked up a 38/30g combo (30 needed resealed) with metal stand, substrate (which I won't use), heaters, two air pumps, 6 nets, a hand full of sponge filters, air stones, 3 50lbs buckets of slate and tufa rock, a box of terra cotta pots and pvc, light strip, glass tops and a whole box of assorted filter media, parts and all kinds of stuff all for $50.
having to move 1 tank vs 40 is a little different as well lol
 
lol good point. however, I didn't have any time restraints as I was just trying to make room in the barn. I was also amazed that even though I was offering multi-tank deals most went as singles.
 
I picked up a 75gal with iron stand for $100, so it was a little more then $1 per gallon for me. That person was offering up 2 75's and 2 55's as a set. They ended up selling them all separate.
 
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