Thanks for the welcome, and reassigning the post.
The pinch of food is small, the increase to twice a day was only very recently and for 2 days only. I'll stick to once from now on though following your recommendation, thanks for the info! They've only been fed once today.. I feed in the morning when the light goes on,
Nevertheless the problem was there before the twice a day food. As discussed, 14 /15 fish are doing very well.
Does he boss the food? Hm, not as such, he likes his food and eats well but not obviously OTT bossing around.. does gobble a bit though but I thought that was because he's bigger breed than the little fish so his species needed to eat more (as they have many times more body mass each as a species,) but he may be eating too much.. the tiny fish don't eat much at all in comparison, and the little red one hardly eats anything.. the catfish are serious munchers, but do really well healthwise.. in fact ostensibly it's a really healthy tank, this fish mingle often, most of them active at many different periods throughout the day, PH is good, they only get properly treated tap water, pre-mixed and at the correct temp etc.. no weird stuff added to the tank.
However there seems to be a tiny bit of silver at the back (tip) of his dorsal fin.. idk if this is natural (non-orange, slightly metallic) colouration or early signs of fin rot? The other species don't have this.. I just don't have the experience to diagnose.
I'll post a vid link soon of the tank, with the other fish..
Thanks again,
Tris
[edited bossing food para @ 10:09pm]