Is the tig for your pond? Your going to need pretty big then right? What size you thinking? if you want something good looking and a little more stable you can try a flash zebra. Also a little more aggressive but don't have to worry about it eating or croaking for no reason. i think rich at infinite had a nice 12"er but they can hold their own against other tank mates. i may be doing an order with him if your interested so let me know vinny. he may also have little tigs but like 5-7" if not for your pond..