Thanks Dirt4dinner. I'm learning lots too. I have to keep asking questions because I don't want to do anything that would harm them. They are adorable and have awsome personalities. It took all of 3 days for them to figure out that when the clear rigid airline tubing goes into the tank, Food is served. Now they hitch right to the feeding tube and wait for the mysid to come out the end. A few times they sucked it right out the end. I must have been taking too long, lol. I still have to think of a name for the female......My youngest daughter (the one who talked me into getting them) named the male Charger, since he charges at the food. So I guess I only need a female name.