spoil him with food he will warm up to you (if you do do that do more water changes) also with more hiding places he should be more sucure and should come out more
How long have you had the fish? How big is the texas? Convicts and jewels can be pretty aggressive at a small size like that, possible could be hiding from them too. Texas needs to get a bit bigger than 2inches(if they are that small as well) before they get their 'courage' hehe. If they all come out to see you after a short while, then they just need more time to get used to you. It will happen eventually.