Hello all! I currently have a JBJ 45 gallon cube AIO reef tank but have been recently trying to upgrade to a larger size with a sump. I’ve never used a sump so I’m not sure what to do and I also don’t really know what I’m looking for when getting one and I’d really like some advice! I found a 75gal acrylic tank with stand and sump (pics below) for sale for only $250 and was wondering if that’s a good deal or if there’s something missing from the pics shown that I could be concerned about? Like I said I’m not really sure what I’m looking for or should be looking for as I bought my AIO from my LFS not a private seller, but I bought it, tank, stand, and return pumps, for around $1k and I was thinking that if this 75gal tank was good to go then I could sell my current one in hopes to pay off some of the debt from this tank! I’m waiting for more pictures from the seller but this is all I have so far so I apologize, but is there also any difference between acrylic and glass? And does it look okay or? Would just really like some help, thanks in advance!