armored catfish

Anyone have experience with OXYDORAS NIGER, PTEDORAS GRANULOSUS and MEGADOLORAS IRWINI? I've kept my granulosus for about 3 years starting from 4 inch and now he is 8inches, however he was 8inches for the past year and a half. He is in a community tank where I give live feeders weekly which he...

It has been several months now since I got them. Always feed em pellets, nothing else. But seems like they start to refuse to eat em in large quantity like they used to. If I were given the same food for months, I would refuse too I guess. And their growth has dwindle over time, should be 1' a...