clownfish

i dont know why but my one percula clownfish lays on the bottom of the tank sideways then swims around for 20 secounds or so then goes right back to the same spot lays down for 20 secounds or so then starts all over he's been doing this for 2 days now water conditions r good salinty alittle high nothin big tho the other percula swims around like nothin is wrong anybody see this before

 

My tang does it. He actually lays on his side under a huge piece of liverock. he's moved allthe sand out from underneath. He did have a battle with ich, maybe he has a swim bladder problem? Any thoughts from the experts?

 

clowns are weird little critters mine are always laying down when i turn the lights on, they have stayed in the corner of the tank head up or tail down during the night, they lay right in the coral or on top the rock. ive had mine probably like 5 years for mine its just part of the way they act

 

Are he and the other clown bonded, or do they always pick at each other? Also, what is he eating, and how often?

 

they dont pick on each other i figured it out he only does it when i do a water change for like 2 or 3 days then he is fine