My bladder tank is 24 gallon and the pump recommends 48 can I use 2 24 gallon tanks

Interestingly, this question gets asked rather frequently. It is not only do-able, it will improve your pump life as well. In fact, don't feel limited to a second 24 gallon tank. I would consider going larger than 24. This article has some good info on how to do it.

An Additional Water Pressure Tank can Help You Save Money. (http://www.frugal-living-freedom.com/water-pressure-tank.html)