I bought a jardini the other day for $30. He's about 3 0r 4 inches and looks good. I had a nice convo with the mfkers on a thread last night about tank size. I put the jar in a 20 gallon long to start b4 i toss him in the 55 which i think i can get close to a year out of i hope. I recently bought a 150 with everything for $200. After the convo last night it got me thinking about a bigger tank maybe in the next 2 to 3 years. What would be a good price for a 180 or 200 gallon tank. On craigslist there is a 200 gallon for $750. What are good prices for larger used tanks?