Hi, I recently bought a male VT from Petco, and placed him in a 0.75 gal tank. Realizing the error of my ways, I promptly purchased a 3 gal tank, which arrived 2 days later. I filled the new tank partway with aged/treated/filtered water. I added all of the water from the previous tank to the new tank. In the old tank he acted perfectly "normal" - swimming casually, exploring, flared at his reflection in a mirror (I only did this once for about 15 seconds). In the new tank, he paces, has what looks like seizures, does not explore, and will not flare at his reflection. I uploaded a video to youtube: https://www.youtube.com/watch?v=B_n8QgCrPrY The water temp is 79-81F. I have been doing 50% water changes every three days, should I do 100% changes? I have a mechanical filter and have used it sparingly because I was afraid the current was upsetting him. I have not tested any water parameters - ammonia/nitrites/pH etc. I live in Manhattan (we are supposed to have excellent water ..for human standards anyways), I use a Pur filter and condition the water with Elive betta water conditioner. There is a female in the tank beside him but they are separated by a paper divider so he cannot see her. She is acting normal, so I don't think it is an issue of water quality. They are in basically the same water with the same change regimen. He has a ghost shrimp as a tank mate. They don't bother each other. There are a handful of live plants too. I was over-feeding him the first two days of ownership, stupidly following the recommended "as much as they can eat in 1-3 minutes twice a day" on the pellet container. Well he could eat about 8 small pellets in 1 minute. So he was getting 16 pellets a day!! I cut back to 3 pellets twice a day. Any ideas?