I'm upgrading my tired old 150g glass SW tank for a newer 180g tank to replace it. I've located an acrylic tank at a great price but having second thoughts. I'm due to pick this tank up this week but may bail out of it due to the research I've done. The fish will include a Dog Faced Puffer and a Humu Picasso Trigger which (according to some reading I've done) can scratch acrylic with their teeth. I'm not finding too much info as to whether this is true or not. I can have a heavier glass tank with no problem in regards to the weight but it really comes down to price. If I do go with a glass tank my LFS has one in stock and they would drill it for me too. Any advice on this would be greatly appreciated, thank you.