Can anyone help identify these?


New member
Hey everyone, I was hopeing someone could identify these two worm or algae type things and whether or not they are safe to have in there. They just started growning about a month ago but are growing slowly.




New member
If the things you are asking about in the first picture are the small red tubes, they are vermetid snails and are harmless to the tank (but unfortunately can cut you a bit when you poke a finger on one accidentally). The green algae is also a nice macro algae - harmless if not beneficial.


Premium Member
Curtis, I have had those too. Some type of algae. I had them for about 6 mo. or so. They are gone now. How's your Calcium levels?


New member
Thanks you all.
Mary - I havn't checked the Ca levels since the 3rd of Aug, at that time it was 440mg/L. Its about the same now I would think without testing.