Lemon Butterflyfish
The Lemon Butterflyfish, also known as the Milletseed Butterflyfish or Millet Butterflyfish, is mainly yellow with many dark spots on its sides forming vertical stripes. It has a black bar through the eyes and its fins are yellow.
This fish is suitable for beginner aquarists and requires a spacious 70-gallon or larger aquarium with a peaceful community. It can be kept singly or in pairs if introduced at the same time.
It is not recommended for reef aquariums.
Diet should include finely chopped meats such as marine fish, crustacean meat, and mysis shrimp. A vitamin supplement with the food helps maintain bright yellow coloring.
Size
| Size Range | Measurement |
|---|---|
| Small | 1.5″ to 2.25″ |
FAQ
What is the ideal tank size for a Lemon Butterflyfish?
A 70-gallon or larger aquarium is recommended to provide enough space for this active fish.
Can Lemon Butterflyfish be kept with other fish?
Yes, it can be kept with peaceful community fish, but it should not be housed with aggressive or reef-dwelling species.
Is this fish suitable for a reef tank?
No, the Lemon Butterflyfish is not recommended for reef aquariums.

Fiona Bower –
Easy to care for and very active in the tank. The yellow color stays vibrant with regular feeding of mysis shrimp and marine meat. Needs a big tank though, so make sure you have space.
Bella Kelly –
Great beginner fish with a lovely appearance. I kept it with a few peaceful community fish and it’s not aggressive. Feeding it finely chopped meat keeps the color bright.
Rebecca Wallace –
The fish is colorful and lively. I’ve had it for three months and it’s still active and healthy. Just make sure the tank is large enough and avoid reef species.