I have been having issues with dark green stringy algae, mostly in filter media and hanging out of filter and off the tops of plants.I have only recently had this problem. it is a 2.5 gallon and i do atleast one 50% or more water change a week, depending on debre on bottom. It has a filter and a heater and only one betta. I want to get rid of the algae as it is really unattractive and annoying, anyone with any suggestions they are welcome. i discovered on inetrnet that i might be able to boil decorations or something, however i really don't want to start the tank all over again, as it has only been going for a couple of months and i don't really want to have my fish cycyle the tank all over again. he is very happy in there and this new problem is very frustrating, help please.