Fungal Infection?

[george4593]

Ammonia 0ppm
Nitrate: 0ppm
Nitrite: 0ppm
Ph 6.3 i use peat because i have a very hard alkaline water area.

Soft water tank, i add 'discus code freshwater trace and minor elements' to the water
Angles
Neons
Albino corys
Sterbai corys
Clown plecs
Apistogramma cacatauids

150litre tank
Before anyone says neons and Angelfish are bad together, mine are fine and the angles are only 1 inch long.
Fed a whole variety of foods, flake dried and live.
All other fish are fine


The sterbai has the patches of slight white and some of it is a very light red
Help would be much appreciated
I think it's fungus but getting another opinion
I do a weekly 25% water change, the sterbai is moving and eating fine

 

[BerryAttack]

looks fungal. 
did you cycle your tank?
for how long?

 

[Alm0stAwesome]

mmm, it's strange to have no nitrate, but yes does look fungal.