Not sure what this is but any info would be helpful. Havn't noticed until today when taking some pics and when looked closer appears to be several. If bad, how do I get rid of them?
Looks like just the "standard" red planaria, in every instance I have seen they have not caused any real damage other just than being a visual pest. I would recommend following the instructions outlined in the link tag posted, I have seen this technique replicated many times and it seems to work well. Also, introducing some sort of natural predator, such as a six-line wrasse seems to help as well.
