I have a 20 gallon with two clownfish. It has been running a little over three months. I turned everything off earlier in order to add some copepods. It was just easier to turn the main switch off. I was also acclimating some shrimp for my other tank and completely forgot to turn everything back on. The clownfish were laying in the corner when I came in. I tested for ammonia and put an air stone in. They are swimming around now. Temperature dropped to 74. Are they going to be okay? Anything else I should do?