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Description
Black Widow Combtooth Sailfin Blenny Altosalarius FasciatusBlack Widow Combtooth Sailfin Blenny Altosalarius Fasciatus Overview: The Black Widow Combtooth Sailfin Blenny is a unique and captivating species, cherished by aquarists for its vibrant personality and striking appearance. With its distinctive black body contrasted by vivid, iridescent lines and a remarkable sail like dorsal fin, this Blenny is a showstopper in any marine aquarium. Origin: Native to the coral reefs of the Indo Pacific region, the
Black Widow Combtooth Sailfin Blenny Altosalarius FasciatusOverview: The Black Widow Combtooth Sailfin Blenny is a unique and captivating species, cherished by aquarists for its vibrant personality and striking appearance. With its distinctive black body contrasted by vivid, iridescent lines and a remarkable sail-like dorsal fin, this Blenny is a showstopper in any marine aquarium.
Origin: Native to the coral reefs of the Indo-Pacific region, the Black Widow Combtooth Sailfin Blenny thrives in environments rich in coral and rocky crevices. They are adept at blending into their surroundings, making them both intriguing and challenging to spot.
Feeding: Omnivorous by nature, their diet should include a variety of foods to maintain optimal health and coloration. Offer a mix of marine algae, spirulina, and high-quality prepared foods. They also appreciate live and frozen foods such as brine shrimp and mysis shrimp, providing essential nutrients.
Tank Mates: Ideal for a community aquarium with peaceful to semi-aggressive fish. Compatible with most reef inhabitants, avoid housing with large predatory fish or those known to nip at fins. Tank mates should be chosen carefully to ensure harmony within the aquarium.
Aggression: Generally peaceful, though they can exhibit territorial behavior towards their own kind or similar species. It's advisable to keep only one per tank unless the aquarium is large enough to provide ample space for each individual.
Experience Level: Suitable for aquarists of all levels, from beginner to expert. Their hardy nature and adaptability make them a rewarding choice for those new to marine aquariums, while their unique behavior and appearance appeal to experienced hobbyists.
Water Parameters:
- Temperature: 72°F to 78°F (22°C to 26°C)
- pH: 8.1 to 8.4
- Salinity: 1.020 to 1.025
- Ammonia/Nitrite: 0 ppm, Nitrate: <20 ppm
Add a touch of the exotic to your aquarium with the Black Widow Combtooth Sailfin Blenny, a fascinating and resilient addition to any marine setup.
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Exchange/Return Notes
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4.1 ★★★★★
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Product Reviews
★★★★★ 5
Smooth edges better than twisting
Works a lot better than the crank style and the counter top electric and you can use the lid to reseal the can if you don't use the whole thing.
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Reviewed in the United States on June 3, 2026
★★★★★ 2
Worked for only 4 months. Now produces metal shards. Dangerous
Pros: Can be used with one hand. I bought this to have after surgery that left me without use of one arm for a few months. The light blinks when you need to charge it. Only needs a 2-3 min charge for enough juice to open a can.
Cons: IT QUIT CUTTING CORRECTLY AFTER 4 MONTHS. I now have to use both hands to hold it in place to get it to latch on to the can. It also requires a few rotations around the top to cut through the seal, resulting in METAL SHARDS! The metal shards are super sharp and almost invisible. I stabbed myself with one enough to draw blood. This is dangerous as the metal could fall into the food when pouring from the can.
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Reviewed in the United States on January 10, 2026
★★★★★ 1
Can opener
This product does not work well! It actually doesn't work at all!! Will not cut thru can lids at all. Very disappointing to say the least. I purchased to make things easier only to be left not being able to open dinner 😕. Would not recommend to anyone!!!
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Reviewed in the United States on May 15, 2026
★★★★★ 4
Can opener
It doesn't shut off by itself when done and doesn't shut off when I push the button, so after a while it will shut off but when it wants too after you take it off the can ,like 30 seconds. But I do like the way it cuts, a clean cut and lid removal nice.
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Reviewed in the United States on February 2, 2026
★★★★★ 5
So simple to use, I'm amazed
Color: Black
Wonderfully helpful. Description is accurate, shipping was quick. I saw a few poor comments, but I have none so far! The can opener has opened cans of several sizes, from tomato paste to large cans of tomatoes; soup cans to strangely shaped. It's opened 30 or so already without loss of power. It's a little noisy, but about equal to that of a stand up opener. It fits in my drawer, which is less deep than most kitchen drawers. Most of all, it's beyond easy to use for arthritic hands. The ONLY CHALLENGE I have is that it sometimes fails to stop when it should. MANUFACTURER: if you read this and have advice, please share.
At this point, I'd say this is a great value for the money.
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Reviewed in the United States on February 18, 2026
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