Too many of these creatures in my tank what are these?

  • We are currently upgrading MFK. thanks! -neo
I also sent a picture to my local fish store, the guy says these are planaria. Is it possible that these are planaria and if they are, are they dangerous ?
 
I'd say leeches. Did you feed live tubaflex worms? If so probably came in with those.
Not baby snails or fish.
I get black worms for my pea puffers and some other fish, sometimes leeches come in with those too. Most of my fish will eat the leeches.
 
I'd say leeches. Did you feed live tubaflex worms? If so probably came in with those.
Not baby snails or fish.
I get black worms for my pea puffers and some other fish, sometimes leeches come in with those too. Most of my fish will eat the leeches.

yes, I have been feeding live tubaflex worms. I have puffer fishes and plecos and guppies, Assasin snails, and loaches. Do you think that they will eat those leeches?
 
Planeria, usually have a triangular shaped head, can be almost microscopic to almost 1 ft long.
If you cut them in half, both sides may regenerate..
They usually occur in tanks that are overfed, and love unvacuumed detritus.
Many fish will eat them.
The paradise gourami (Macropodus) is well known as a planeria eater.
They can come in on plants, and live foods (tubifex are a great source.
 
I have many assign snails and many Malaysian trumpets snails. Could these be babies of any of these snails?
No this is not baby snails.
It’s a leech.
They can and will feed off of snails though.
I’ve had them before.

The way I got rid of them was to manually remove them and drop them in a bucket of copper treated water.

Cooper and other anti parasite medications will kill them. But this is also deadly to other invertebrates so putting it in your tank would kill your snails.
 
thanks BIG-G. I have many cherry shrimps, so I guess the medication will kill shrimps if I put them on the tank. You mentioned that you manually removed them and then killed them. why could not you just flush them in the toilet rather than wasting copper to kill them in a bucket?
 
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