Leech or planaria?

I do believe it's just a harmless critter that pops up due to excess food now. My only real worry right now is that they do seem to be on the snails a lot. I might fast the tank through the weekend to see if that'll lower their numbers a bit.

Although, an alternative solution also presented itself.

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This is only time I've ever seen a BBG grab something off the glass.
 
LEECH....I had these in two of my tanks a while back. Here is a pic of them covering the bottom of an ornament that had been buried in substrate, BTW These are CONFIRMED leeches. I still find one or two in one of my tanks here and there but I just wipe them off with a paper towel. Here's a quick test, get one off the glass with your finger and let it sit there for a few seconds, does your finger where it was feel numb or calloused if so it's a leech.

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Here's a quick test, get one off the glass with your finger and let it sit there for a few seconds, does your finger where it was feel numb or calloused if so it's a leech.

Well, it's certainly not like putting your head in a crocodile's mouth just to see if it's a crocodile, but I'm still not going to let it sit on my finger. I am leaning away from it being a leech if only based on it's movement.
 
Actually, I am quite the wuss when it comes to worms, leeches and such, they freak me out... in fact, I'd probably be more willing to stick my head in the croc's mouth.
 
The leeches I had were definitely parasitic on my fish as I saw one attached to the side of a guppy late at night. They attach, feed, then detach, so you might not know that they are parasitic unless you see one actually feeding. The guppy had a small circular lesion on it's side as well. It was fairly easy to see as it's a light yellow guppy. I never did see any lesions on the red platys that were also in the tank.

My leeches would hang out under the driftwood and if I picked up the wood and turned it over in the tank, they would let go with their mouth sucker and wave around in the water, stretching out, while remaining attached by their tail sucker.

I totally nuked the tank. I couldn't live with them ! I killed some nice plants getting rid of them but I was not taking any chances of moving them to another tank. They are just GROSS! Interesting, but gross!!
 
The leeches I had were definitely parasitic on my fish as I saw one attached to the side of a guppy late at night. They attach, feed, then detach, so you might not know that they are parasitic unless you see one actually feeding. The guppy had a small circular lesion on it's side as well. It was fairly easy to see as it's a light yellow guppy. I never did see any lesions on the red platys that were also in the tank.

My leeches would hang out under the driftwood and if I picked up the wood and turned it over in the tank, they would let go with their mouth sucker and wave around in the water, stretching out, while remaining attached by their tail sucker.

I totally nuked the tank. I couldn't live with them ! I killed some nice plants getting rid of them but I was not taking any chances of moving them to another tank. They are just GROSS! Interesting, but gross!!
If I am not mistaken we had this same problem around the same time:)
 
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