
The fry is doing fine, he's gone into hiding with his mates, and he's feeding.
It all makes sense to me now. What happened at the same time as I stopped feeding the Tetra Discus was that I also started more frequent water changes. The left over home made shrimp mix must be removed after min 24 hours, or it will go mouldy. Therefore a consequense of starting with only this food was more frequent water changes; water with 0 in hardness, so if there was any buildup of hardness it would be diluted immediately.
I'm just happy he's doing good, and will make sure to add some hardener to the water in the future.
Crossing my fingers this is it and that he will have no relapse!
