Well from my research it does swell the belly it has to where else will they be stored? This is one site I read that explains it. I am curious if it looks like other that have had experience with it is all.
How to ...
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How to Tell If a Saltwater Clown Fish Is Pregnant
By Chelsea Hoffman
6
Native to the warm waters of the Great Barrier Reef and similar oceanic areas, the clown fish is a colorful and attractive saltwater fish. By carefully observing the behavior of clown fish in your aquarium you will be able to tell if they are breeding.
A male clown fish
Step 1
Observe the behavior of the tank mates. Ordinarily, the female of the mated pair will assert dominance and attack the male, nipping at his fins. This is a sign of sexual maturity. If the male submits to the female, both become ready to breed, although no acts of breeding may be witnessed.
Step 2
Pay attention to the appearance of the female clown fish if you suspect the fish have mated. One of the first signs of pregnancy includes thickening and swelling of the fish's midsection as she becomes full with eggs.
Step 3
Observe the behavior of both the male and the female fish. If the fish constantly appear to be cleaning off rocks and digging burrows into the gravel near secluded parts of the tank, this indicates pregnancy.
Just trying to make sure we are ready when it happens the fish do swell I just haven't seen it in my tanks is all.