Hi all I have had trouble with flicking fish since i got x 2 new tinfoil's !!! I have 3 tinfoil barbs from 7 inch to 13 inch !!!! + 12 inch clarias and a 20 inch rt x tsn cat !!! Mainly the tinny's that are flicking !!! they have been doing this for around 8 week's my water is fine !!!! I have put in a sterazin p treatment that i started on monday did the 2nd dose yesterday and am due to do the 3rd dose out of 5 on saturday !!! the fish have been flicking a bit more than normal today and rubbing there belly's under there gills and also like gulping !!! could this be due to the treatment starting to kill the fluke's ? And the fish trying to clear them out !!! Or something else ? Have never used sterazin before !!! I might not even have fluke's but don't know !! If any one can help me out or has used sterazin before i would be very great full !!! Thank's