All of your adult Goldfish including the female Oranda, the male Comets, and your other male Goldfish are all the same species, Carassius auratus. Click here to read more about Goldfish.

This is similar to the situation with the dogs in my neighborhood. They vary a lot in size, shape, and size, and it is difficult to guess what their babies might look like, but they are all the same species.

I would guess that some of your baby Goldfish may grow up to be what goldfish farmers call nymphs. These are Goldfish with large round bodies and vertically lobed tails like the comets. But you will probably get other interesting shapes too.

I'd like to comment on why I think your Goldfish spawned in your aquarium. First 6 mature Goldfish in a 55-gallon aquarium, means each Goldfish has about 9 gallons of water. That is not really crowded.

Second, when you moved the aquarium from your friend's home, you probably didn't keep all the old water, and instead you added some fresh water to top up the aquarium, after you moved it.

Goldfish will often spawn after getting some fresh water. Changing water is a very good way to stimulate most but not all species of fish to spawn. Click here to read more about changing water.

You mentioned that you have been taking really good care of your fish, and that probably also contributed to your success in spawning them. When fish spawn, it is usually proof that they have been getting the good care that they need. If the care is poor,  most types of fish will not spawn.

You also mentioned that, "The males all have the small white bumps on their gills ...", and these small white bumps appear on the males just before they spawn. I'm glad you mentioned seeing the bumps.

Thanks, Jonas, for your interesting comments.

The eggs are sticky. Most people that breed Goldfish use spawning mops that can be moved after the Goldfish have spawned. Click here to read more about spawning mops. Click here to read more about spawning Goldfish.

Incidentally, there are females of other species of fish that do become pregnant and release live babies. Mollies are an example of this type of fish. If you are interested in breeding fish, we recommend you start with Mollies. Click here for more information about breeding Mollies and how to raise babies.

If not the eggs will not be fertile, will soon turn opaque white, and will not hatch. But if the eggs were fertilized, they should hatch in two or three days depending on the temperature of the water.

You should not try to remove the eggs from your aquarium. Instead move the fish, so they won't eat the eggs.

When baby Goldfish hatch from eggs, they are shorter than 1/8th of an inch, which is about 3 millimeters. In fact, I've heard baby goldfish described as being about 2 millimeters long. If you can carefully estimate the size, when you first saw the baby fish in your pond, it  might be a useful clue.

Baby Goldfish are not gold or orange colored, when they hatch. Instead they are often tan or olive colored. Sometimes they are dark, but I have not seen really black baby goldfish. Again the color of the baby fish in your pond, might be a clue.

As baby Goldfish grow, they begin to have the shape of goldfish, and when they've grown to be about 1½" long, they often begin changing color.

I do not recommend putting weeds from a lake in a pond, because the weeds might contain something that will cause a problem in the pond.