What are these on my glass??

[tundraguy1106]

I have a 120 gallon tank with only fish in it at the moment. Only a few months old. I have 2 percula clowns, 2 lyretail anthias, 2 cleaner shrimp and 2 blood shrimp with a few dozen snails. I noticed these on my glass while doing a water change today. Any ideas??

 

[Crabs McJones]

Acoel Flatworms
Harmless for the most part, but can reproduce quickly. Fish will usually eat them, specifically wrasse. Otherwise siphon them out when doing a water change

 

[tundraguy1106]

Acoel Flatworms
Harmless for the most part, but can reproduce quickly. Fish will usually eat them, specifically wrasse. Otherwise siphon them out when doing a water change

I was under the impression that flat worms were bad? I’m eventually going to be adding corals. Wrasses are on my fish list. Unfortunately I’m in the middle of a quarantine right now with an anthia and a kole tang. I had more anthias, however they did not make it through shipment (from LA general stock). So here we are lol

 

[Crabs McJones]

Most flatworms are bad, these guys won't really hurt anything. They will compete for zooplankton and small particulate food though.

 

[Katrina71]

@hdsoftail1065 can tell you some precautions if you decide to use flatworm exit.

 

[tundraguy1106]

@hdsoftail1065 can tell you some precautions if you decide to use flatworm exit.

After a brief search on here, I think I’d rather see what happens and get some fish to rid the problem. Lots of horror stories with flatworm exit.

 

[Katrina71]

After a brief search on here, I think I’d rather see what happens and get some fish to rid the problem. Lots of horror stories with flatworm exit.

I agree 100%

 

[jaxredsoxfan]

I think your making a good decision. I always try and look for a natural solution, and chemical remedies only as last resort.