| Care Level | Easy |
|---|---|
| Temperament | Peaceful |
| Reef Safe | Yes |
| Functional Benefit | Algae Control |
| Diet Type | Herbivore |
| Mininum Tank Size | 30 gallons |
| Max Size | 4 inches |
| Temperature | 72–78°F |
| pH Range | 8.1–8.4 |
| Specific Gravity | 1.022–1.025 |
| Stock | Variations | Price | Quantity | |
|---|---|---|---|---|
| In Stock | 1.25 - 2.25" - Indo-Pacific |
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Every order ships with our standard 3-hour live arrival guarantee. Need more time? Add our 5-Day Guarantee at checkout.
Full guarantee terms →Ships Monday – Thursday for next-day arrival at your nearest FedEx Hold location — typically ready by 9 AM. We monitor every delivery.
Shipping details →
Monday – Friday 8 AM – 9 PM
Saturday 12 PM – 4 PM
Sunday 12 PM – 9 PM
Healthy, stable animals from vetted suppliers — inspected before packing, shipped overnight. Decades of experience built this model so we can deliver premium livestock at 30%+ less than you'd pay elsewhere.
The Segmented Sailfin Blenny is an algae-grazing blenny that spends much of the day picking microalgae from live rock and hard surfaces. It shows distinct “segmented” vertical banding in yellow and reddish-tan tones, and it stays close to rockwork where it can perch and move between crevices.
What You’ll Observe:
- Short “hops” and quick dashes between favorite perches on the rocks
- Frequent grazing passes where it methodically pecks along the rockwork
- Regular pauses to rest on pectoral fins while watching activity in the tank
- A routine that becomes more predictable as it learns your feeding schedule
To succeed with this species, provide plenty of live rock with natural grazing areas and multiple perching spots across the aquascape. Offer supplemental greens like spirulina-based herbivore foods and dried seaweed so it keeps eating consistently as your tank “cleans up.” In mixed reef systems, stable placement options and consistent feeding help it stay focused on grazing and settle in smoothly.
Why is my blenny “perching” instead of swimming in open water?
Perching is a normal resting and lookout behavior for many blennies, and they often move between a few favorite spots throughout the day.
How do I get a new algae blenny to recognize prepared foods?
Keep offerings consistent and easy to find (like seaweed on a clip or herbivore foods near its usual perch) so it can “pattern learn” where food shows up.
Will it still graze algae if I’m feeding frozen foods in the tank?
Many will continue to graze between feedings, but they often shift their daily routine once they associate you with regular feeding time.
Is it normal for a blenny to change where it hangs out (rockwork vs. sand) over time?
Yes’many blennies expand their patrol area as they get comfortable, and you may see them use new perches as the tank matures.
What’s a simple way to keep it busy once the rocks look clean?
Rotate between natural grazing time and supplemental greens (spirulina-based foods and seaweed) so it keeps a steady daily picking routine.
We work with trusted suppliers who keep our specimens healthy and well-fed before shipping.
