Hi, I just got an oto yesterday to lurk within my 5 gallon and occupy the half of the tank my female betta never uses. I've had the tank a little more than 2 months. I've never been able to test it, as the only way I can afford tests right now is online (still looking for one). However, I have a couple plants to help in case there is anything, and I also bought stress zyme just to be safe, and to help maintain good parameters. I decided to quarantine the oto so I can make sure he's not sick (I heard a lot of people say you should), but all I have is a 1 gallon bowl. Mind you it's properly rigged, with a filter that aerates and a heater that was in my 5 gallon until yesterday when I bought a new one. I very slowly acclimated the oto for about 3 hours, putting in very small amounts until it was pretty full, then emptying the bag about half way, then doing the same thing till it's almost full again, and then scooping him in the bowl, eliminating the icky fish store water from getting in the bowl. For the fish bowl I used water from my old tank as well as cutting some of my foam filter that I had in with the carbon filter insert, and putting it in the small filter in the bowl. As well as the appropriate amount of stress zyme. I also have a large plastic plant in the bowl that is slimy, and the heater has a thick coat of diatom algae still. And I froze some fresh spinach leaves and thawed and added one. So anyway, I didn't really expect any problems since I'm guessing pets unlimited sells premium captivity bred otos, considering they charge $12 each. So I wanna make sure it's not me. Could the sheer size of the bowl make him depressed? He sits on top of the filter, sometimes with a body part exposed to the surface and doesn't seem to cling to things as much as I feel he should be. He also doesn't react to my presence unless I move things too much, and then he squirms around. He's not plump but he doesn't appear to have a caved in belly either. He was clung to the spinach for quite a while but I'm not even sure he was eating it, and just on it cause I put it right next to him. Just now I had to pull the filter up more towards the surface so it could pull in more oxygen, and he didn't even move while his whole body was partially out of the water, I had to push him back in. Now he's just resting limply between two plant leaves (not even attached to them). Physically he doesn't look sick, he just flops and flails everywhere till he finds a place that he can sit without any current (which I thought they loved). Should I risk putting him in the tank already? I was hoping to wait till I got in my order of plants (3 marimo balls, 2 anubias eyes, and some java moss), to complete the plant life I already have (one thriving bacopa australis, duckweed, and some plant that was mislabeled and now I don't know what it is) I wanted this because I wanted to rearrange things so my betta wouldn't feel so intruded upon, and also to assure that the water parameters will be as pristine as possible. Other details: I do about 2 gallon water changes every week or less, my betta fish is extremely active, happy, and healthy. I intend to do 50% water changes in the bowl every other day. Fishbowl temp is 25C. Here are my local tap water parameters if they mean anything: Ammonia- <.05 Nitrite-<.01 Nitrate- .07 Hardness- 19.5 PH- 7.4 Alkalinity- 13.3 Hope this is enough info for you. Thanks for your help.