Need ID if possible

[angieg1123]

I have 2 of these. One is a baby and the other is as big as the palm of my hand...quite big for a slug type critter. Any ideas? It is brown with lighter brown spots all over it. It is flat like a piece of paper.

 

[angieg1123]

Pseudoceros maximus...so far I have discovered it is a flatworm species. There is almost NO information on it. It does not seen to have hurt anything in the tank so far. I may add them back to my sump....

If I later find out that was a bad idea....it wouldn't be my first mistake and it won't be my last

 

[pagojoe]

It can and will kill essentially any snail that is smaller than it.

 

[Kremis]

Big flatworms are generally bad imo. When in doubt, keep it out :lolspin:

 

[angieg1123]

I got them out, but if I had 2 I am sure there are probably more. They were in the sump, not the main reef. That is probably why I haven't noticed a decline in the snails in the display tank.