The Lawnmower Blenny (algae in the saltwater aquarium)

18 Feb

My saltwater tank is getting overrun with algae.  I remove handfuls of Caulerpa and Chaetomorpha but two types of hair algae stay behind and continue to grow.

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One is a pale greenish-yellow hair algae, not very nice to look at. The other algae I actually encouraged until it started spreading! I think it’s called Turf Algae. It’s a nice bright green and looks like a compact little ball of moss. I like it, but…too much of a good thing.

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How to get rid of, or at least control this algae?

Snails? That might work except I have a Green-spotted Puffer in my tank. He would love it if I added a few snails for his lunch.

CAM01610CAM01609CAM01608  A Yellow tang? Great idea , except they can get 6 inches long and nearly as tall and my tank is only 42 gallons. I wouldn’t do that to a Yellow Tang although they are beautiful.

I don't have Yellow tang. This image is from Saltwaterfish.com

I don’t have a Yellow tang. This image is from Saltwaterfish.com

So I decided to buy a Lawnmower Blenny! If you want to know all of the details about the Lawnmower Blenny just Google uh…Lawnmower Blenny and you can read for hours. Find out where they come from, how big they get, all that good  stuff. I’m going to show you pictures of my tank BEFORE the Lawnmower Blenny and sometime down the road I will post pictures of my tank AFTER the Lawnmower Blenny.

I paced the bag in my tank and took two hours of slowly adding my aquarium water to the bag. I put the Blenny into my aquarium and THREW AWAY the water from the fish store.

I placed the bag in my tank and for two hours slowly added my aquarium water to the bag. I put the Blenny into my aquarium and THREW AWAY the water from the fish store.

He's not very colorful but the pattern is interesting and he is fun to watch.

He’s not very colorful but the pattern is interesting and he is fun to watch.

After one week I don’t see any change in the amount of algae in the aquarium. He picks at the hairy stuff growing on the glass but there is a lot in the tank and it may take a long time for him to catch up. I’ll let you know!

Here's a view out my front door last yesterday. See why I am on the computer now?

Here’s a view out my front door yesterday. See why I am on the computer now?

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9 Responses to “The Lawnmower Blenny (algae in the saltwater aquarium)”

  1. alice February 18, 2014 at 6:19 pm #

    thanks for sharing! It’s hard to see LB very well – does he (or she) have a blunt face? I’ll look him up on the web some more. It’s nice to see all the green – and the colorful fish.

    • fishtanx2011 February 18, 2014 at 6:33 pm #

      I definitely need to take better pictures of the blenny. I may name him Denny the Blenny.

  2. graeylight February 18, 2014 at 10:48 pm #

    Still very much considering getting a law mower. Have been for a while. I’ll be interested to see your opinion! Ps, We are snowed in too!

    • fishtanx2011 March 1, 2014 at 6:29 pm #

      I’ll be posting about Denny the Blenny very soon!

      • graeylight March 1, 2014 at 9:54 pm #

        OH MY GOSH!!! What a perfect name! I’m excited!

      • fishtanx2011 March 1, 2014 at 10:00 pm #

        I thought it was clever until I started saying to myself “Benny, Denny, Jenny, Kenny, Lenny, and Penny.”

      • graeylight March 2, 2014 at 6:19 pm #

        Hahahaha I do that with a lot of things

  3. CarlosNYC March 8, 2014 at 11:01 am #

    If i may pitch in on the algae problem, the best way to help reduce it would be to add a HOB filter such as aquaclear and as media, use granulated ferric oxide(inside a media bag). You can get by with a small unit and it will sort of hide in the back of the tank. The feeding of the fish increases the po4 level which with time will result in algae growth beyond control. Hope that helps. Good reefing,

    • fishtanx2011 March 8, 2014 at 11:33 am #

      Thanks. I’ll be sure to research that. Any idea how this might affect the growth of the Chaetomorpha and Caulerpa that I DO like?

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