i have a 30 gal thats been running for about 6 months with fish i've had the percula since the beggining and has always stayed in the middle of the tank when the lights were on. i added a yellow corris wrasse a week ago and acouple days later he started swimming on the bottom and alot more rapidly twitching almost. i noticed today he has been fanning the sand making a hole but he just sits in the hole not moving for short periods of time. my main concerns are the rapid swimming and the not moving just sitting on the bottom. the first thought is that the wrasse may be too aggressive? do have a firefish that has a nipped tail fin but dont know where from only fish are the corris wrasse, firefish, clown with a clean up creww and shrimp. any input would be appreciated.
thanks
keenan
thanks
keenan