Tiny flatworms
Printed From: Utah Reefs
Category: Specialized Discussion
Forum Name: Invertebrates
Forum Description: This is the place to ask questions about invertebrates.
URL: http://www.utahreefs.com/forum/forum_posts.asp?TID=72138
Printed Date: December 12 2025 at 5:27pm
Software Version: Web Wiz Forums 12.03 - http://www.webwizforums.com
Topic: Tiny flatworms
Posted By: 1stupidpunk
Subject: Tiny flatworms
Date Posted: July 11 2014 at 7:20pm
I have been seeing these tiny little flatworms on the surface of my glass for almost 3 months now... The tank is my 6g mr aqua tank and has only a few stalks of kenya, a sea whip, and a bunch of macro. Only livestock is a handful of snails. The flatworms dont appear to be on the macro, the few kenya stalks, or the sea whip... just on the glass.
The corals came from my reef tank which i have never seen a flatworm in there. Im under the assumption that they must have hitchiked on some of the macroalgae? A quick google search turned me to a reef central thread with another reefer having similar scenario and people there seemed to think the flatworms were eating pods or cyano and/or diatoms.. has anyone heard of this?
I couldn't get a clear pic with my cell phone but the google search found a pic that looks just like it...
http://www.captivereefs.com/forum/attachments/basics/unusual-flatworms-should-i-concerned-flatworm-jpg-3910d1323328762" rel="nofollow - http://www.captivereefs.com/forum/attachments/basics/unusual-flatworms-should-i-concerned-flatworm-jpg-3910d1323328762
They are very small, about 1/32" to 1/16" and appear to be tan or perhaps very pale pink.
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Replies:
Posted By: ReefdUp
Date Posted: July 11 2014 at 8:38pm
They're very common...and harmless. Their population will wax and wane. I wouldn't worry.
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www.reefdup.com
Diving since 2009, reefkeeping since 2007, & fishkeeping since 1987
200g, 75g, & 15g Systems
PADI Advanced Open Water
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Posted By: 1stupidpunk
Date Posted: July 11 2014 at 8:46pm
wasnt to worried as the only livestock that will be in this tank is dwarf seahorse(s)
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Posted By: ReefdUp
Date Posted: July 11 2014 at 8:49pm
The two-tailed acoels are fine. It's the tailless and three-tailed ones that are bad.
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www.reefdup.com
Diving since 2009, reefkeeping since 2007, & fishkeeping since 1987
200g, 75g, & 15g Systems
PADI Advanced Open Water
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Posted By: Mark Peterson
Date Posted: July 11 2014 at 10:02pm
Yep, they are probably beneficial in many ways, for what they eat and what eats them.
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