I am going out of town and have someone that is going to feed my jack dempsey fry for 2 days. They will be about 5 weeks old. I want to get either golden pearls or decapped brine shrimp to feed them with while im gone, as the person feeding them has no clue how to hatch and havest baby brine shrimp. If i get golden pearls, what size micron should i get?? here is the site im going to order from... http://www.brineshrimpdirect.com/other-goldpearl-particle-c149.html. Any help would be greatly appeciated. Thanks!