My W/C pair of 7 inch Jaguars spawned last week.There are hundreds of fry with them in their 90 gallon tank.I am feeding them 3 times a day with Frozen Baby Brine Shrimp and Hikari first bites.My problem is I am going away next week for four days and there is no one to feed them while I'm gone.I saw those weekend feeder blocks.Would they work?Any ideas?