There's only so much we can tell you. It would also help to do a little research of your own. There not difficult to take care of. They mainly stay at the top of the water, i fed mine red rosy minnows because he didnt wanna convert to anything else. They max out around 12". Be careful of your tank mates cause my catfish took mine out like it was nothing. There technically not a true gar. They need warmer water so 76F-82F is a good temp he can thrive in. Ive always thought a good way of learning about a fish is keeping that fish. But thats me. Good luck and i hope to see some pics of that needle nose soon!