JD spawn like rabbits, once they start you will have fry up the ying yang, JD are usually good parents, I would leave them be, 100 is not very many but good for a first spawn. do you have prefilter socks on your intakes? if not those little guys get sucked up when they rise like a cloud. for food crush reguler fish food, I find a coffee grinder great for this as I can grind up a months feeding in one shot. again having a prefilter sock works great to keep from fowling your filter and the fry will feed off the sock or sponge.