Molly Miller Blenny


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Care Level: Beginner

Minimum Tank Requirements: 20 Gallons

Diet: Omnivore

Reef Safe: Yes

Temperament: Peaceful

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Product Description

Molly Miller, Scartella cristata,  is also known as Barnacle Blenny or Lawnmower Blenny. These blennies are very active and are always hopping from one perch to another.  They are pretty peaceful fish and only reach a maximum size of 4 inches. They range quite a bit in coloration, from green, yellow and brown to almost a red coloration. They are not picky eaters and will readily eat meaty frozen foods, pellet foods along with algae.  Part of the reason that some people call them Lawnmower Blennies is their love for algae.  If your tank does not have algae, you may want to supplement its diet with some dried algae or some sort of food with an algae blend so that it gets all the nutrients it needs.  They are mostly peaceful fish, but have been know to show some aggression to its own type.  It is mostly a short lived show of dominance and not a serious fight between each other.  We keep multiple blennies in tanks and have never noticed any damage to the fish due this little spat so I guess they work it out pretty quickly.

For more information on them check out this helpful link on Molly Millers:



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Please Note:  Any new fish purchased from us or from a local pet store should to be quarantined.  All fish from anywhere in the wild can be possible carriers of bacteria and protozoa that can lead to an infection in your system, so we always recommend that you use some sort of quarantine system prior to adding them to your system.  If you have a fish only system and can medicate the whole system, you may not need a separate quarantine tank.  If you have a reef system that cannot be medicated, a good ultraviolet sterilization system should prevent any kind of disease outbreak.  We medicate our system for bacterial infections and protozoans, but because we don’’t always hold our fish for long periods of time, there is no way to be sure all the protozoan cysts have been killed.  A little bit of prevention will save you lots of trouble down the line.