Hello, I am new to this place and need desperate help. I have a beautiful Male VT Betta named Nate. and I've never cared for one before. Unfortunately I got him as a dirty Santa gift and I just cant let him die... I fell for the little guy. He is in a 3 gal (for now) filtered and heated to about 77 degrease. I did a 50% water change cause I noticed the drop. It was at 7.0PH when I left work. (he has to stay at the office) He's been itchy and I couldn't figure out why. I was using test strips but now I have the API mater test kit. the fish store said it was burning him cause of the low PH. I got to the office this morning and his PH was at 6.0..... I did another water change. He's in his one gal bowl right now while I run his new water in his tank for about an hour... Please help I don't know what to do to keep his water stable. I know he's super stressed. He keeps banging himself against everything..... If I need to give additional info PLEASE let me know!!