I like to hatch baby brine shrimp to feed my killifish. Been using a little desk lamp to heat the water in a little Tupperware container with 1 quart of water. The light does not regulate the heat and it keeps it too cold generally so the hatch rate is lower than it could be. The ideal for brine shrimp is 80-82 degs. according to the package, I have an extra little Aqueon mini heater that came with a mini tank. I was thinking of using the mini heater for the brine shrimp? Here is the heater: What do you guys think? Is this a good idea? Anybody use this heater in very small containers (1 quart Tupperware) of water like this? The little heater has no controls and is supposed to self regulate at 80 degs. But, it came with a 5 gallon tank?