Thread: My Ryukin is Scaring me?

my ryukin just hangs around the filter he never used to do that and now he just sits there and he also never goes to the top

any help would be appreciative

the tank is 15 liters, there are 5 fish a mini silver shark, shubunkin, 2 small ones fish which i dont know which they are and the ryukin,

Here go the usual questions. how big is your tank? what are your water perameters Ammonia nitrite nitrate? how old is your fish? Have you noticed anything else out of the ordinary? How many fish are in the tank and what type?
Need to know these to give you a good answer