I’m raising brine shrimp for some African dwarf frogs, and I’ve hatched some cysts. I’d like to move the little shrimp into a .5 gallon pickle jar. I know they need a heater, right now I’m just leaving their container under a heat lamp in my (land) hermit crab enclosure. I’ve got a spare 50W preset heater hanging around, but not a 10 gallon tank. Could I somehow use this heater? I’m guessing no, but could I maybe put insulation around it so it emits less heat into the water?