Gold torch bleaching

[Hypez]

I have noticed my gold torch is bleaching underneath. The torch does have little flow in the area it’s in so it is leaning to vet the bleached side only.
(I have just added another power head for more flow)

do you think it’s because the bleached area is shadowed from the light?

I have other torches and Hammers at the same high, see photos attached

salinity 1.025
Ph 8.3
Temp 25.5
Nitrate 5
Phosphate 0.03
Alk 8.3
Mag 1350
Cal 420

 

[Cory]

Whats it supposed to look like normally? Becaise it doesnt look bad to me.

 

[nicholasng11]

I think it’s due to the lack of light. Same thing happened to my hammer. Once I move it it bounce right back