Common names for the Tailspot Blenny include; Tailspot Coral Blenny & Tail Spot Blennie. They originate from Indian and Pacific Oceans.

Tailspot Blenny
Tailspot Blenny

These funny little fish bring a whole heap of character to your tank. They love claiming a hole in the rockwork as their home, you will often just see their heads poking out of the hole. They will spend their days perched around the tank, normally towards the bottom of it.

Tailspot Blennies will pick at hair algae, but they would not eat enough of if to be considered good clean up crew.

They can be aggressive towards other Blenny species, so care should be taken when considering adding them to an already establishes tank.

Tank Requirements & Facts

  • Minimum tank size: 30 Gallon (115 Litres)
  • Prone to disease: No, these are hardy little fish
  • Beginner Compatible: Yes
  • Adult Size: 2.5 inches (6.3cm)
  • Reef Compatible: Yes
  • Predator Tank Compatible: No
  • Care Level: Easy
  • pH: 8.1 to 8.4
  • Temperature: 24°C to 28°C
  • Preferred Tank Level: Close to live rock and nearer the bottom of the tank.
  • Lots of hiding places required
  • Number to a tank: To be kept singularly, without other Blennies, unless you have a very large set-up.
  • Tight fitting lid – these little guys are expert jumpers.
Tailspot Blenny
Tailspot Blenny


These fish have no special requirements with feeding, but the tailspot blenny is known to eat a large amount of algae. Introducing them into an established aquarium that already has a sufficient algae buildup will make them happy.

  • These are omnivores
  • Plenty of vegetable matter. This includes dried seaweed, algae flakes, and algae wafers that have been specifically formulated for marine fish.
  • A varied diet will help with health
  • They are slow eaters
  • Live foods, frozen foods and flake will all be appreciated.


Place your fish in the bucket and then drip acclimate for about 60 minutes at a rate of 2 drips per second. This should bring the fishes water parameters in line with your tanks parameters.

Once your fish has been drip acclimated, catch the fish with a net and place it gently into your tank. Do not put any of the water the fish originally came in, into your tank.

Care should be taken after adding the fish to ensure there is a tightly fitting lid on the aquarium at all times. These fish are known to be jumpers and they are more likely to jump when first introduced to an aquarium.


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