Flounder (Bothus sp)
Reef Compatible – With Caution
Care Level – Beginner
Disposition – Semi-aggressive
Min. Tank Size – 150 gallons
Mature Size – 18 inches
Specifications
| Parameter | Size: S (2″ to 3″) |
|---|---|
| Species | Bothus sp |
| Compatibility | Reef compatible with caution |
| Difficulty Level | Beginner |
| Adult Size | 18 inches |
FAQ
Is this fish safe to keep with corals?
This species is reef compatible with caution. It may occasionally nip at soft corals or polyps, so it is recommended to keep it in a tank with hard corals and avoid placing it near delicate or slow-growing soft corals.
What is the recommended tank size for this fish?
A minimum tank size of 150 gallons is required to provide adequate space and stability for this species.
How long does it take for this fish to reach maturity?
The flounder reaches a mature size of 18 inches over several years, typically taking 3 to 5 years to fully grow.

Andrea Welch –
Easy to care for and fits well in a 150-gallon tank. I noticed it doesn’t harm the hard corals and stays active without being overly aggressive. Good for beginners who want a semi-aggressive fish with reef potential.
Adrian Edmunds –
The fish is healthy and active after a few weeks. I placed it with a few hard corals and it hasn’t damaged any of them. Just keep an eye on soft corals as it might nibble occasionally.
Chloe Lewis –
Perfect for a beginner reef setup. It’s calm most of the time and only shows slight aggression when feeding. The size is small at first, but it grows steadily. Very satisfied with the purchase.