Clown fish on it's side

[Sidsreef]

Hello,

my tank had a rough cycle a about a week ago but I completed it. So now today I see my clown doing this.. He will pop up and swim for a sec then back to this... Is this a air bladder issue?
The tanks is about 2 weeks old and parameters are changing here and there not super swings

No white spots, he is breathing rapidly. I have another clown and he's doing fine

Water parameters are
Salinity: .025
PH:8.3
Nitrite :0.1 ( being closely monitored and frequent water changes along with bacteria dosing)
Nitrate :0
Amonia: 0
Alk:5.5

I'm having trouble with my alk for some reason also

 

[kittenbritches]

Questions...

Are you sure about that salinity? Do you mean 1.025?

If ammonia is zero, you should have nitrates unless you did an enormous water change.

What tests are you using?

I assume both clowns are in the same tank — do you have a hospital tank you could put the sick one into?

 

[ReefKidDarian]

my clown lays down alot but always comes up during feedings and hosts a XL green splatter bubble coral. But she lays down under her BC so i think mines is hiding