Cheapest Online Fish Store?

All depends on the kind of shipping, and the size of the fish. You can take a risk and get two day shipping, but you will risk losing fish. Overnight most places/people offer live arrival gaurentees. Overnight can range from $35 to over $100 depending on the order size. Plants obviously are cheaper because they can be shipped 2 or 3 day with no problems. Just remember, you get what you pay for.