• 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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  • Most Recent Forum Topics of Discussion


    Looking for a Fantasy Football League to Play In.

    Thread Starter: cubuffs


    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

    Last Post By: cubuffs 12 Hours Ago Go to last post

    WTT RBT Anemone

    Thread Starter: Nemesis

    Looking for a small colony of pulsating xenia to trade for a rose buble tip anemone rock.The rock is about 3in wide and 7in long.

    Last Post By: lesserwhirls 14 Hours Ago Go to last post

    90-75 combo

    Thread Starter: rplank

    Finally my tank build is done. Here's what I have....

    I had a diy 75g AIO that I picked up from CL last December. The back 6" is sectioned

    Last Post By: Miah2bzy 16 Hours Ago Go to last post

    Cloudy water

    Thread Starter: damontoy

    Looking for the cause of cloudy water. 92 gallon RR with sump and refugium. Kessil lights life reef protein skimmer. 4 small fish. It's been like this

    Last Post By: Dr.HarlemTutu 19 Hours Ago Go to last post

    Wtb rio 2100 impeller or submersible pump

    Thread Starter: deboy69

    My rio 2100 impeller broke today and it's almost as much as a new pump to replace it. Does anyone have a rio 2100 impeller and shaft or a submersible

    Last Post By: deboy69 1 Day Ago Go to last post

    Painting back glass

    Thread Starter: Tango

    Whatbdoes everyone ise to paint the back glass on tanks. The 90 i picked up was plasti sprayed and it pealed off

    Last Post By: deboy69 10 Hours Ago Go to last post
  • Most Recent FTS

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  • Top 10 Most Currently Active Threads


    The Chaeto Thread

    Thread Starter: djkms

    I know there are a lot of people who regularly trim back their chaeto and there are a lot of people who are looking for chaeto. If you have chaeto...

    Last Post By: Tango 15 Hours Ago Go to last post

    How much do you love your fish buddies!!

    Thread Starter: Andrew_bram

    So you know you love your buddies when you wake up from long night after reefstock and help them clean up there puke

    Last Post By: Dr.HarlemTutu 19 Hours Ago Go to last post

    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: sethsolomon 9 Hours Ago Go to last post

    FS: Many Frags and a rainbow anemone!

    Thread Starter: BrianH

    This is a frag fundraiser for my new tank as those Spears gate valves are so dang expensive! lol! All of these frags were cut at least 3 weeks ago...

    Last Post By: BrianH 18 Hours Ago Go to last post

    Thinking of buying a dosing pump.

    Thread Starter: mbaeza64

    I have a 150 gallon tank with a bunch of LPS corals and some SPS corals so I never had one before so what do you guys recommend? What should I dose?...

    Last Post By: zombie 10 Hours Ago Go to last post
    Catfish Charlie

    Lots of Clownfish and more at Stone Aquatics!

    Thread Starter: Catfish Charlie

    Stone Aquatics 3437 So. Broadway Englewood, CO Phone - 720-526-9177 Clownfish and more Clownfish at Stone Aquatics! Here is what else we...

    Last Post By: Catfish Charlie 4 Hours Ago Go to last post

    WTB 200-250 gallon rated skimmer

    Thread Starter: reeftankulous

    Thinking about upgading my skimmer. With increased bio load in my tank my 150 gallon rated reef octopus is falling a bit short. Please let me know if...

    Last Post By: bush8984 6 Hours Ago Go to last post

    Zombies getting out thread

    Thread Starter: zombie

    So I decided to get rid of all my equipment for the time being so I can focus on looking for a house and taking care of it for a while. Below is all...

    Last Post By: alphapuck5280 2 Hours Ago Go to last post


    Thread Starter: mbjnt

    Hello, I've heard of this group from various sources (Mindblowing Coral and Liquid Kingdom). Been working on this saltwater tank for year and half,...

    Last Post By: Dr.HarlemTutu 19 Hours Ago Go to last post

    Auction auction auction !!!!!

    Thread Starter: Rumen

    Starts now ends Sunday the 2nd at 10pm last highest bid wins.. All proceeds will be going to masc so show your love and bid..I'll get more pictures...

    Last Post By: Rumen 5 Hours Ago Go to last post
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