Marginated Damselfish
The Marginated Damselfish, also known as the Marginate Damselfish, features a white body with black trim and yellow and light blue highlights on the scales along each side of the body.
It thrives in a 30-gallon aquarium or larger with ample rockwork and décor. This species is tolerant of substandard water conditions, making it a good choice for beginner marine aquarium keepers. A small group of juvenile fish adds vibrant color and visual interest to any tank.
Feed a varied diet including meaty foods, herbivore preparations, and flaked foods.
| Approximate Purchase Size | 1/2″ to 1-1/4″ |
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FAQ
What kind of tank size is recommended for Marginated Damselfish?
A 30-gallon aquarium or larger with plenty of rockwork and décor is ideal.
What should I feed my Marginated Damselfish?
Feed a variety of meaty foods, herbivore preparations, and flaked foods.
Are Marginated Damselfish suitable for beginners?
Yes, they are tolerant of substandard water parameters and are often recommended for beginner marine aquarium hobbyists.

Carl Terry –
The fish arrived quickly and looks exactly as described. It’s vibrant with the yellow and blue highlights. I kept it in a 35-gallon tank with some rockwork and it’s been active and healthy since setup. Easy to care for and adds a lot of color to the tank.
Faith Dyer –
Great addition to my marine tank. The fish is active and shows off its colors well. I feed it a mix of meaty and flaked foods daily. It’s not aggressive with other fish, though it does become territorial as it grows.
William Ellison –
Perfect for a beginner. The water conditions in my tank were not perfect at first, but the fish adapted well. It’s a striking fish and has become a centerpiece in my tank.