Its 2.5 gallons, an improvement from his 1 gallon, he has two plants and the spongebob pineapple to hide in and I'm using the same water conditioner I used for his old tank (7 drops per gallon). I have a filter for it, but I'm not running it until I have the time to fix it so it disturbs the water less cause he is a little guy
It HAS been excessively cold the last couple of days so that could be it, I put a heater in the tank yesterday afternoon and have been watching the temp on the thermometer I just bought. The warm up is slow going so we will see when I get home tonight if warmer water helps out. I hope so lol, he used to come and eat off my finger, and now he just swims away and hides.