Looking for a fun addition to your reef, or even a species that you can center a nano aquarium around? Weโre delighted to introduce you to the tailspot blenny! This colorful, perpetually confused-looking bottom dweller might be the perfect species for your fish marine tank.
Keep reading for everything you need to know about tailspot blenny care.
| Name (Common, Scientific) | Tailspot blenny, Ecsenius stigmatura |
| Mini tank size | 15 gallons |
| Minimum group size | 1 |
| Temperature | 75-82 ยฐF |
| Salinity | 1.020-1.025 |
| pH | 8.1-8.4 |
| Difficulty level | Easy |
Tailspot blenny (Ecsenius stigmatura) description
The tailspot blenny is not a large species and maxes out at around 2.5โ in length, making it one of the smallest blennies out there. It naturally inhabits reefs in the Indo-Pacific and can easily be recognized from its eye-catching coloration: a blue to orange gradient over the entire body, a double horizontal stripe on the face and of course a black tail spot.
Frog-like eyes and two whiskers that almost resemble antennae conclude the tailspot blennyโs comical appearance.
Tailspot blenny (Ecsenius stigmatura) aquarium
These fish are not too fussy about their aquarium and what it looks like. They make a good choice for a nano reef, although there is some discussion on how small you can go. Some sources list 8 gallons, others 10, while yet others prefer 30.
Weโve settled on around 15 gallons as being the minimum for us, provided itโs a horizontal tank that offers plenty of bottom space. Bigger is still better, though.
Like many other reef species, tailspot blennies will appreciate an aquarium with plenty of live rock and other dรฉcor. They love having access to nooks and crannies to hide in and, as bottom dwellers, will also appreciate a sandy substrate. They also appear to prefer a relatively low water flow level.
As for water quality, this is a relatively hardy species, but as with all fish your aquarium has to be fully cycled before you introduce it. Keep water values stable with regular maintenance.
Tip: We love open-top tanks, but with this species, youโll have to make sure your aquarium has a tight-fitting lid. Theyโre prone to jumping and can easily end up on the floor if youโre not careful.
Tailspot blenny Ecsenius stigmatura) compatibility
This is a delightfully peaceful species that wonโt bother any of your reef inhabitants, with one exception: other blennies (and anything that looks too much like one). It works fantastically as an addition to a peaceful reef and wonโt bother corals. In fact, for a species this small, the main risk is it being eaten itself!
Avoid larger carnivorous or overly assertive tankmates. Some examples of good tankmate options for a tailspot blenny include species like the blue-green chromis or clownfish.
As for its own species, you can keep tailspot blennies in pairs. If you donโt have a confirmed pair, youโll have to at least double the minimum tank size in order to avoid excessive territorial quarrels. This also applies if youโd like to keep any other blennies, like the lawnmower blenny.
Tailspot blenny (Ecsenius stigmatura) diet
The tailspot blenny is an omnivore, but one that leans towards the herbivorous side. A happy tailspot will spend plenty of time scouring the aquarium in search of tasty algae patches! Itโll be appreciated if youโre not too vigorous about scrubbing away algae, as unsightly as they can be.
Because our home aquariums are a bit too clean to sustain fish without supplemental feedings, you can go for a mix of (thawed) frozen foods and algae-based bottom feeder discs to keep your tailspot blenny happy.
Itโs recommended to feed small portions at least twice a day. For variety, you could also see if your blenny is interested in seaweed sheets and blanched leafy greens such as spinach.
Tip: An underfed tailspot blenny might become desperate enough to pick at corals and invertebrate tankmates. If you see this happening, especially if your blennyโs belly appears sunken, itโs time to up the feedings. Also keep an eye on things to make sure this bottom dweller actually reaches the food before other fish do.
Conclusion
A reef aquarium filled with colorful fish like the tailspot blenny is a joy to see, whether itโs a 15 gallon desktop tank or a 150 office eyecatcher.
If youโre dreaming about your own reef but donโt know where to start, you can contact us here so we can design, build and maintain it for you.
