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Adventures in Captive Breeding of Marine Ornamentals

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Banggai Cardinalfish

Posted on March 14, 2012 at 7:05 PM Comments comments (0)

Some years ago, my Banggai pair spawned!

Banggais are mouth brooders. The male incubates the fertilized eggs and sometimes hatchlings in his mouth for about 3 weeks. Mr Banggai has had two opportunities for incubation so far, and has eaten the eggs both times. But he is young and inexperienced, so we hope for more in the future from him. They sure are fun to watch!


Neon Gobies

Posted on March 14, 2012 at 7:00 PM Comments comments (0)

The following is a posting from long ago:

After deciding to try a new species, I ordered 5 neon gobies, Elacatinus oceanops, and put them in the quarantine tank with a few PVC pipe fittings. I fed them a lot, and they all seemed to get along well. After a couple of weeks, I noticed one of the fish staying in the PVC! Sure enough, it was a male guarding some eggs.

It was the biggest fish in the tank, and that surprised me since I was told that the biggest one would likely be female. I did not know which one was the female at first, but then I noticed one of the fish had a large abdomen almost all the time.

I made attempts at hatching the eggs, and that was fun, but the babies did not live for many tries. Then I noticed one of the smaller gobies was getting picked on, so I removed it and another small one to another tank. They got along very well, and pretty soon, they had eggs, too. The fifth gobie disappeared. I never knew what happened to it.

Feeling pretty good about getting two pairs of spawning fish out of 5 purchased, I began serious attempts to hatch eggs and raise the larvae. I tried a glass tank, tigger pods, rotifers of course, and all kinds of things. I even bought a small UV filter thinking that bacteria had killed one of the batches.

Then I just got lucky. A black round tub, and about 7 gallons of water, and careful food administration did the trick. Just rotifers, new hatched brine shrimp after about a week, and the smallest size golden pearls, just a dusting daily, along with careful neglect and a little circulation at night when they were sleeping. I did use a night light and a bright light in daytime. That made it more fun because I could actually see the little transparent larvae for the 4 weeks it took for metamorphosis to occur.

Tried my patience, but I was rewarded with a tub full of irridescent blue-green striped fish!


Clownfish Development

Posted on March 14, 2012 at 6:25 PM Comments comments (0)

Clownfish lay eggs on a solid surface and guard and fan them until they hatch. Nest care is mostly the role of the male clownfish, although the female may take a turn now and then. The picture below is of orange eggs freshly laid on a curved rock surface.

11/18/2010 After many years of raising clownfish in my spare time, I have to say, it is still a fun activity for me. I never tire of seeing the little live swimmers in my tank when they first hatch, seeing their full bellies after their first good meal, watching them learn to hunt rotifers, watching them grow, seeing the first white bands form on their little heads. Will it ever stop being fascinating?

Gotta run now! Gotta go see if the eggs hatched!


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