let me just say that if you are not willing to have a 300 gallon tank as a min you should not be looking to get these guys. They will eat you out of house, They need lots and lots of fresh water so an auto water change or a drip system is best. You will need a large sump as the filtration needs are high and the heaters can not be in the display tank. But they are allot of fun to keep. Even if they are small you still will need a large tank as they are active and need allot of room.