i just moved him and the trio into a bigger tank. he isnt outgoin anymore and seems to be sluggish. his mouth is open all the time like he has a mouthful, but he isnt breathin hard or anything. im just curious if he is just adjusting still or is there a problem. he hasnt even chased the females around. the larger female chases the smaller one and thats about it. any ideas or help would be great thank you.