Are these baby Goldfish?

I have two 7" Comets (one male, one female) living in a 45 gallon tank, with a 'small scat' ... but yesterday the scat died, and my husband thought that the tank was 'too cloudy' so he took the goldfish out and put them in another tank ... but he didn't empty the 45 gallon tank. This morning, we looked, and there are about 100 'teeny tiny' fish swimming at the top of the tank. Both goldfish were acting 'strange' and we did wonder if Phish (the female) was 'going broody' ... now they are both 'playing happily' in the smaller tank, but we aren't sure whether we should just 'clean the 45 gallon tank' (and kill those tiny fish, or wash them down the drain) or try to 'scoop them into a 'cage' and let them 'grow' until they are 'big enough' to be put into the 45 gallon tank. HELP!!! We're doing 'nothing' until we KNOW what those 'baby fish' are!