After losing one pup (too big for mom to deliver) I'm determined to do whatever I need to keep the surviving pup alive and well. This is my first litter of ray pups so advice from those with experience is appreciated. I moved her(I think) into a 55g that had some grow outs in it. The grow outs went into the big tank with the exception of the smallest tinfoil. I used water from the birthing tank and transferred it into the 55g. I haven't noticed any yolk sac so should I try to feed later today? Pup was born maybe 10:30pm yesterday. I'm going to head to the store to pick up some night crawlers. Thanks.