I bought a yasha goby and a tiger pistol about a month ago and they seem like they try to actively avoid each other. I have two big rock islands in my tank and one stays under one pile and the other the other rock pile. About once a week I will see the yasha go to the other rock pile and I will get excited that they might pair but then the next day I see that the pistol would be under the rock pile the yasha just left from. I am not sure which one is trying to run from the other. Any tips on trying to get them to pair or is it possible to add a different type of goby or another pistol to tank without causing issues. The tank is a 75 gallon.
