How many crickets can you keep in a 10 gallon terrarium. I have an extra one I wasnt useing. I dont want to breed them I just want to buy them in bulk and get them cheaper than purchaseing them at the local petco. Also is there a growing rate for them and how long they will stay alive for before dieing of old age? Right now I mostly use small crickets but will eventualy be moveing on to large so I am tryign to figure out what size to buy them in now and later so that I have the size I need for a decent amount of time.