Am just using my phone at the moment and not sure how to link
No I don't keep discus I just find it interesting readings books and articles about diet and health I always like to feed my fish as natural a diet as possible heiko blehers discus vol 1 vol 2 are really good reads for anyone into discus what you could do is try coating a piece of slat in repashy and stand it up right they might be more inclined to try it