I am happy to share with you the longest a pair of menarambo has cared for their fry- 23 days post spawn and still going strong. I use a long dropper to feed them live baby artemia (6 inches long). The parents used to bite me but recently they welcome my hand- really odd. I removed all sources of vibration from the pump and limit noise to what is generated outside the fish tank- parents and fry seem to behave more naturally imo and this may be the reason that after more than a decade of removing fish eggs, I finally got the parents to care for their own. I assume that sound and vibration interfere with their normal breeding behavior. These fry should behave more naturally than artificially raised ones if exposed to less noise since it’s possible to induce temporary and permanent hearing loss.