smd189
Community Member
My tank is about 4 months old. I did a partial water change yesterday and now this morning I have these guys on glass above sand bed. Probably about .5-1mm long. All shaped the same and don't appear to be moving. Thanks.
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My tank is about 4 months old. I did a partial water change yesterday and now this morning I have these guys on glass above sand bed. Probably about .5-1mm long. All shaped the same and don't appear to be moving. Thanks.
RedFrog211
Valuable Member
Yep! It’s a Flatworm- they don’t pose much threat to corals, unless their population grows out of control and they smother corals. Blooms in population usually correlate to excess nutrients in the water
RedFrog211
Valuable Member
How old is your tank? That can certainly do it. In newer tanks, you don’t have macro algae and filter feeders that compete with these for nutrients! Edit: I see in your op you said 4 months! Their numbers should diminish in time. I usually remove any I see though, just to proactively prevent any outbreak
RedFrog211
Valuable Member
Edit: I see in your op you said 4 months- their population should even out! I remove any I see though, just to help prevent an outbreak
smd189
Community Member
Started it up in early Aug. so not old. Any suggestions on how to handle? Thanks.
These things are the size of a fleck of pepper. Without a magnifying glass I wouldn't be able to see shape or that they are anything more than dust on the glass. How should I remove? Thanks.
vetteguy53081
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Acoel flatworm and not your typical coral killer However they cause problems in numbers by smothering the base of coral and blocking the light whish produces zooxanthellae for food source.
Best removal if just a few of them is to siphon them up. If successful, you must for the next two weeks inspect coral daily for signs of eggs which are super tiny.
Yellow, melanurus, 6 line and lunare wrasse will eat them also.
Best removal if just a few of them is to siphon them up. If successful, you must for the next two weeks inspect coral daily for signs of eggs which are super tiny.
Yellow, melanurus, 6 line and lunare wrasse will eat them also.
