Betta Fish: Day 2 with the new (first betta)

From research I have done online he seems to be in good spirits (fins spreading, exploring, eating) . I do understand that painted rocks was not a good idea and we have plans to do a change to non painted rocks. We do have heater filter and Anubis plants I have got the master test kit to try and start test water and getting it right. I have added the seachem stability to get the cycle started. All the guidance and instructions are very thank and welcome. We are just a couple trying to do things right thanks all