The gold color of the stripes typically does not develop until the fish are about 9-12 months old.
These very popular fish are easy to keep in aquariums, although they do not get along with each other. Unless a hobbyist can get a mated pair, it is best to keep them one to a tank. It has been observed that the gold stripe variety seems a little less aggressive than the White Striped variety. This is one of the largest clownfish species; adult females can attain a size of over 6 inches.
Captive-bred clownfish are very hardy and durable fish making them a perfect addition for the novice or seasoned aquarist. The Maroon Clownfish is a good candidate for a reef aquarium, though they are very sensitive to elevated levels of copper, and should never be exposed to levels near or above .15.
Captive-bred clownfish are easy to breed in the home aquarium. The females will be the largest of the pair, and two fish will usually stay close to each other in the aquarium. These fish are egg layers and will deposit the eggs on a flat surface, and defend the eggs from other tank mates. The eggs will normally hatch in 8-11 days depending on the temperature. The fry must be reared in a separate aquarium on a diet of rotifers then baby brine shrimp.
The Gold Stripe Maroon Clownfish diet consists of almost any meaty food items and herbivore preparations.
Do not move the Maroon Clownfish with a net as its cheek spines will become entangled. Use a specimen container if capture is necessary.
(info from Live Aquaria)