Is my clownfish okay?

[beginnerreefer300]

I bought 3 of clownfish (they get along fine) from my LFS two days ago (may 23) and I know there are known to have digestive issues when they are moved or stressed and I did notice two of them had white stringy poop, and the other was fine last night I noticed that he was sleeping close to one of the suction cups that my heater has ( i checked to see if the heater could burn and it doesn’t) I didn’t want him to get stuck so I moved him and this morning I only saw two of them and started looking from the other one and found him again near the suction cup. So again I moved him and he is swimming but I thought he was swimming kind of weird. I took a video for you guys to see please let me know!!!

 

[MikeReefs]

My clownfish have slept by my heater for years. They won’t get burnt if they touch it. Cant open the video but how big is your tank. Having 3 clowns will be a problem down the road if your tank isn’t huge. Clowns or any fish that not nocturnal swim blindly and aimlessly if you check on them when they are sleeping. Clowns especially do a little hovering motion usually around the same spot everynight and all fish sleeping will look pale

 

[beginnerreefer300]

Oh yea sorry i forgot to include my tank measurements i have a 29 gallon tank 30.2 W x 12.44 D x 20.82 H (inches)
Also I reuploaded the video.

My clownfish have slept by my heater for years. They won’t get burnt if they touch it. Cant open the video but how big is your tank. Having 3 clowns will be a problem down the road if your tank isn’t huge

 

[MikeReefs]

Yea might not be a problem now but it will be when they start to assert dominance soon. One of them will try to change genders to female. They might become aggressive. One will submit and stay male to become her mate. You can assume what they would do to the third one