• MASC Mission Statement

    The Marine Aquarium Society of Colorado is dedicated to the endorsement, education, and fellowship of marine aquarium hobbyists.

    We will increase awareness among members and the public of the importance and value of marine ecosystems and their preservation through captive propagation and responsible collection of organisms.

    We will deepen hobbyists’ knowledge about the husbandry and study of marine plants and animals, increasing the longevity and well being of the creatures in our care.
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  • Top 10 Most Currently Active Threads


    The Dr. Has gone insane Re-build

    Thread Starter: Dr.HarlemTutu

    So, after the crash I did some serious thinking about what I want in my home. My wife encouraged me to get my dream tank that'll fit into our home...

    Last Post By: MuralReef 17 Hours Ago Go to last post

    Quest Library 180 gallon Gorgonian/Caribbean Biotope Build

    Thread Starter: MuralReef

    So this past weekend a new adventure began! Thanks to Jake Adams for graciously donating this 180 gallon super tall tank and giving me the idea of...

    Last Post By: FinsUp! 14 Hours Ago Go to last post

    How to buy halides?

    Thread Starter: Balz3352

    How does one go about buying halides. I can't really find a breakdown of how to choose halides. How to choose wattwge, what you need. Ballasts?...

    Last Post By: Dr.HarlemTutu 2 Hours Ago Go to last post

    Looking for a Fantasy Football League to Play In.

    Thread Starter: cubuffs

    Hello, I want to see if anyone has a league that they need an extra person to join in on. OR, can we get enough interest in a league created by...

    Last Post By: amonchak 1 Hour Ago Go to last post

    new here

    Thread Starter: Tangs

    Just moved here to aurora from Vegas had a 300 gallon tank saltwater but to much on me to move it here very sad I had to sell it . But looking toget...

    Last Post By: Luke.Fraizer 22 Hours Ago Go to last post


    Thread Starter: chanson123

    Anybody have any zoas for trade for zoas. I'm also looking for jf bloodshots for purchase or trade. Let me know what you have or what your looking...

    Last Post By: Rumen 51 Minutes Ago Go to last post


    Thread Starter: coastalJ

    hello everyone, we are new to northern Colorado (Greeley)but not to the hobby. ive avoided the obsession for four or five years now, but as usual im...

    Last Post By: Luke.Fraizer 22 Hours Ago Go to last post

    Chillers what brand and which size?

    Thread Starter: MuralReef

    So I currently am running a 1/3 hp current chiller on the 360 but it just can't keep up on weekends. I have thought about running fans but haven't...

    Last Post By: MuralReef 17 Hours Ago Go to last post

    Time to start breaking this thing down sales thread!

    Thread Starter: ReeferMatt

    I told myself I would have my tank down by the end of September, so now is the time to get going. I am planning on making a trip down to Denver...

    Last Post By: MuralReef 14 Hours Ago Go to last post
    Brandon G

    Colorado Sunburst

    Thread Starter: Brandon G

    So I picked up a Colorado Sunburst from Aquatic Art about 3-4 weeks ago. Looked awesome although a little more dull than the mother nem. I get home...

    Last Post By: FinsUp! 14 Hours Ago Go to last post
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