Delphinus
04-20-2007, 04:24 AM
Noticed some hydroid thingies in my FW tank tonight:
http://members.shaw.ca/hobiesailor/aquaria/FW/misc/fw_hydroid_1.jpg
http://members.shaw.ca/hobiesailor/aquaria/FW/misc/fw_hydroid_2.jpg
What are these? Are these a concern?
http://members.shaw.ca/hobiesailor/aquaria/FW/misc/fw_hydroid_1.jpg
http://members.shaw.ca/hobiesailor/aquaria/FW/misc/fw_hydroid_2.jpg
What are these? Are these a concern?