Found this

[ajcile612]

I found a few of these in my cichlid tank today! Idk what kind of snail they are. And I also have no idea where they came from. I bought a used filter a while back that had been running on a different tank in the store right up until I put it on my tank. Any ideas what kind they are and if they are bad or not?

 

[Mbuna12]

Post a picture.there probably pond or ramshorn.there the most common ones you'll find

 

[ajcile612]

This is one if the bigger ones

 

[ajcile612]

The second pic is of a very small one that I just discovered recently

 

[ajcile612]

Anyone know what they could be?

 

[abrinn23]

Looks like a Malaysian trumpet snail

 

[ajcile612]

Are they bad for the tank or my fish or shrimp?

 

[abrinn23]

Nope not at all, many people actually really like these snails for planted tanks. However, they can. Be a hassle if you over feed your other fish because they will multiply like crazy. Just a warning

 

[cichlid_tank619]

Are they bad for the tank or my fish or shrimp?

Loaches love them. I had a bunch sprout up after I bought some plants, the where attached to the roots. So I got some yoyo loach. The dog them up and eat them.