how come some discus change into black colour when they are sick ar? what sickness is that??

internal disease. for such diseases, there is a gd med from qian hu called super cure for disease. powder form.

orh , internal disease they become black ar.. internal bac??
super cure is wht green in colour?

There can be many cause to let discus become black
Some of which i know off is
stress
water parimeter
water temp
tank mates.
Frigten.
Food.
disease.

Normaly discus tt turn black hardly turn back to their normal beautiful colour anymore.
So prevention is better then cure =)

- Ricko

wah seh.. expert sia..
coz i saw 1 tank in a fish shop , under medication.. few discus become black colour.