Hello everyone... so I got a goldfish at the carnival almost 2 years ago. I had it in a bowl and then bought a 10 gallon tank for him. I just kind of put him in there and didn't cycle the tank. Well the tank cycled and he survived. He has been in it for over a year now. He is getting big so I wanted to get him a bigger tank. I got a 36 gallon the other day and I was going to cycle the tank before I put him in it. Well I was reading different things and I came across something called an "instant cycle". I figured if I took his water in his 10 gallon and put it in the 36 gallon and put his old filter cartridge in there he would be good. Well I vacuumed his old tank and put some of that stuff in his new tank and I took some water from the 10 gallon and put it in there and I had the filter cartridge from the 10 gallon just sitting in the middle of the tank. I tested the water in the 36 gallon and the ph was around 6.6 and it was the same in the 10 gallon. Well I wanted it to be 7 so I read that u can add baking soda to it and it will increase the ph. So I added 7 teaspoons just one time and the next day it was around 8.2. I went to petsmart and had the water tested there and they told me to put him in there and everything will adjust itself. So stupid me decided to put him in the new tank. So he is in there now and he was swimming around and eating. Next day I found him sitting at the bottom in the corner just swimming in place. I fed him and he didn't care and wouldn't move. He pretty much did that the entire day and I did a 30% water change and I used well water instead of my tap water (I tested the well water and it was 6) and used the dechlorinator. Ph went down to 7.4ish. He started swimming around a little bit but he pretty much went to the corner again. So its been 2 days since I put him in there and he hasn't eaten except for the first day I put him in. I know my tank isn't cycled and it needs to be. Ammonia, Nitrates, and nitrites are all 0. Current PH is 8. I don't want to kill him. I bought the bigger tank just for him. I was thinking of putting him back into the 10 gallon just until I can cycle the 36 gallon. I still have the 10 set up but I have 3 blue tetras in it. Should I move him back?