This is a discussion on Creepy Crawly ID within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; -->
Ok soo I am in the process of doing a water change in my 10gallon tank and I spotted an opaque spot on silicon ...
Ok soo I am in the process of doing a water change in my 10gallon tank and I spotted an opaque spot on silicon in the corner of my tank. It has brown lines almost like a rib structures (the best way I can discribe it). At first I thought I had some kinda buildup on the tank so I touched it with my scraper and it moved! O.O
It moves like a worm and is about 1/2" big. What on earth is it?? How do you get rid of it or do you need to get rid of it??
I believe it's a planaria (a non parasitic flat worm). I had a couple some time ago after I added some new floating plants.
I think there are mixed reviews on the harm they may do to fish.
I played it safe and got rid of the ones I had (besides, as you said, they're a bit on the creepy crawler side.)
I *believe* there are different types of Planaria, so it's still possible. . . it does look like that could be an option.
Otherwise. . . could it be a limpet? Acroloxus lacustris, I think is the correct name for them. It's hard to tell on the size, it looks far too big, but I have a difficult time with scale on tank shots, as a rule.
Whatever it is (or was) I'm glad you got rid of it! Creepy crawlies are, well, CREEPY! Even if they're not harmful!!!