I will support local businesses but some of the markups are HUUUGGEEE. You have to realize it may seem insane but retailers have to make up margin on some things even if it seems insane to us - these stores have lots of expenses to cover in addition to just paying for product. Also realize this, your local fish store does not likely buy in bulk or have nearly the purchasing power of say Petco / Petsmart. Internet stores have even less overhead and can undercut even the national chains.
30 Gallon reef, 220 gallon South American Cichlid tank.