Please help :(

[Sonicthehedgehog]

I have a small fin Platy who has been sitting on the bottom of the tank on the gravel for three days not eating I have another platy that keeps trying to get him to move, he is moving around various parts of the tank trying to find hiding spaces. Please help can't see any signs of anything wrong and all readings of water are all good pic attached

 

[NickAu]

Please help can't see any signs of anything wrong and all readings of water are all good pic attached

Please post you water parameters, good means nothing.

What are the readings for.
Ammonia
Nitrite
Nitrate
Is the tank cycled
What water conditioner do you use
What is the current water temp.

 

[Sonicthehedgehog]

Please post you water parameters, good means nothing.

What are the readings for.
Ammonia
Nitrite
Nitrate
Is the tank cycled
What water conditioner do you use
What is the current water temp.

Thanks for your prompt reply. Readings are:
Ammonia 0
PH 7
Nitrite 0
Nitrate 20
Yes the tank is cycled & I use Aquasafe, current temp is 76f
I also have another Platy, 2 Harlequins & 2 tetras, they are all fine, just don't get it