Hey TONMO, I've lurked here on and off for a few years researching sepia bandensis. I've probably read "Keeping and Breeding the dwarf cuttlefish" a hundred times haha. So I've finally decided to set up my cuttlefish system. I picked up a 40 breeder with 35lbs of live rock, a 1in sandbed, 150w heater, and an eggcrate top with a fluorescent light. I'll probably be adding a skimmer soon as well. The plan is to order 10 eggs from blue world aquariums, and then order 100-200 live mysids from sachs aquaculture when they hatch. I'm going to put 5 breeder nets in with 2 eggs each to ensure that they are eating in the beginning.. I'll keep the mysids in a smaller aquarium and feed them newly hatched brine shrimp daily. I do have a few questions.... 1. How long can I keep 10 dwarf cuttles peacefully in a 40 gallon aquarium? Assuming all of them hatch and reach maturity, (fingers crossed ) When should I start cycling a second aquarium? 2. How many mysid shrimp should I order 100, 200? and how long will it take for 10ish cuttlefish to burn through 200 mysids? I don't want to order too many just to have them cannibalize each other. 3. What is the best container to store the live mysids? I was thinking either a 10 gallon aquarium or a 16 gallion black round tub. Is there anything I missed, or that you would do differently? I'm trying to set up an ideal cuttlefish system, so any questions/comments/concerns are greatly appreciated. I'm excited!