Altevelis Marine Betta (Large Spotted Species) – Size M (3″ to 3.5″)
Calloplesiops altivelis
Reef Compatible: Yes
Care Level: Easy
Disposition: Peaceful
Min. Tank Size: 50 gallons
Mature Size: 8 inches
Product Specifications
| Feature | Detail |
|---|---|
| Species | Calloplesiops altivelis |
| Size (Adult) | Up to 8 inches |
| Size (Initial) | 3″ to 3.5″ |
| Reef Compatibility | Yes |
| Behavior | Peaceful |
| Difficulty Level | Easy |
| Minimum Tank Size | 50 gallons |
FAQ
Is this fish suitable for a reef tank?
Yes, the Altevelis Marine Betta is reef compatible and can coexist with reef inhabitants.
What is the expected mature size of this fish?
The mature size of this species reaches up to 8 inches.
Is this fish aggressive or peaceful?
This fish is peaceful and suitable for community tanks with compatible species.

Colin Mackay –
The Altevelis Betta has been thriving in my 50-gallon reef tank for six months. It’s calm and doesn’t bother other fish. The spots are distinct and the fish looks healthy. Easy to care for and a great addition to a peaceful reef setup.
Oliver Vaughan –
I was initially unsure about adding a larger betta to a reef, but this one is peaceful and fits well. It grows to about 3.5 inches and stays active without causing stress to other fish. Good for beginners looking for a non-aggressive species.
Caroline Henderson –
The fish arrived healthy and has adapted quickly. It’s not overly active but maintains a steady presence. The reef environment is stable, and it’s one of the few betta species that works well with corals.