Yeah looks filthy, for a show tank for the house. I rather pay the same or lil more for a brand new one even if dimensions are a bit smaller. The filth would annoy me. But if u don't mind it as a project I guess it's cool. I'm in Cali so 4.5k for a used tank in that condition in my opinion is expensive. If you're set on it. I would make an lower offer. Since above member said he seen that tank for awhile. Which means seller having a hard time selling. Make an offer, I personally would not pay 4.5k or even 4k.