Help Please ..........What is this stuff ?

[Louise Cromwell-Doyle]

Don't know what it is. One morning woke-up and it was there, it moves around my tank one minute its in one spot the next couple of hours its somewhere else. Its like some alien doesn't seem to bother my fish but its weird. I'll put two pictures please help to identify thank you. phone pics 1749.jpgphone pics 1748.jpg

[Urban Aquaria]

Looks like Physarum polycephalum (aka slime mold), some info on it:

http://waynesword.palomar.edu/slime1.htm

[Louise Cromwell-Doyle]

Thank you very much for your help. I finally got an answer I have been looking for awhile now.