First I'll introduce my self since I just joined the forum, my name is sean miller, Im very much an amature when it comes to fish tanks and tank chem, so i thought I would join and try and to figure as much out as I can since I plan on going to a larger aquarium in a month or so.
Well, I just got my fish tank back from my old house since previously I had no means to transport it to the new city, after being under the care of an old room mate for about 5 months it was WRECKED.
The filter had never been changed, the water smelled horrible and was only about half full, there was a thick oatmeal looking alge/fungus covering all the gravel about 1/8 inch thick in most places. Somehow the fish were still alive, I was very suprised. Nitrate and nitrite were high, ph and alk were low (still are a little low).
Well I didn't want to completly devistate the fish by cleaning every thing since they managed to live in these conditions for so long.
-I bleached all decorations then rinsed and let dry frequently for a few days.
-I vacuumed the gravel and spent about two hours trying to get all the muck off the rocks as it had incased them so whole areas of gravel would be stuck together by whatever it was.
-Cleaned the glass
-Added conditioned watter back to the tank 1 cup at a time over the course of two days since I didn't want to shock the little guys
-cleaned the plumbing for filter, and of course changed filter
Now everything seems to be fine with the exception that something has started to grow in my bio filter and is blocking most of the flow, it is stringey and white-ish-green in color and grows from the filter down into the water, there is also some foggy film over the top of the water that runs into the tank. Im also getting that rust colored alge associated with new tanks, but im not too worried about that aspect. I was told to never replace the bio filter, Ive been using this one for 4 years.
Does anyone know what this might be or how I can fix it?
Current set up:
4 live plants
1 small pleco
1 corey cat
3 bleeding heart (I think) tetras
2 zebra danios
1 silver hatchet
Any help, comments, ideas, concerns, questions would be awesome! Thanks and sorry for the long post.