Radiata Lionfish – Size M (2″ to 3″)
Pterois radiata
Reef Compatible – With Caution
Care Level – Intermediate
Disposition – Semi-aggressive
Min. Tank Size – 30 gallons
Mature Size – 8 inches
| Size | Color | Temperament |
|---|---|---|
| M (2″ to 3″) | Orange with black and white patterns | Semi-aggressive |
FAQ
Is the Radiata Lionfish safe to keep with other reef fish?
It is reef compatible with caution. It may attack smaller or slow-moving fish, so it should not be kept with very small or delicate species.
What is the recommended tank size for this lionfish?
A minimum tank size of 30 gallons is required to provide adequate space and stability for the fish.
How long does it take for this lionfish to reach maturity?
The Radiata Lionfish typically reaches a mature size of 8 inches over several months, depending on water conditions and diet.

Irene Hill –
I bought this lionfish for my 40-gallon tank. It’s active and colorful, and I’ve noticed it doesn’t eat small shrimp. I keep it in a well-planted area with larger fish, and it seems to coexist peacefully with them. Good for intermediate reef setups.
Jacob Blake –
The fish arrived healthy and looks vibrant. I’ve been observing it for two months. It’s semi-aggressive but doesn’t attack my larger fish. I keep a close eye on smaller species, and it’s been fine so far.
Leonard Ince –
It’s a striking fish with bold patterns. I’m cautious about keeping it with other fish. I placed it in a corner with plenty of hiding spots. It seems content but I’d recommend careful planning with tank mates.