These "lines" are some kind of worm or life-form on the glass of my 65G goldfish tank. They are not planaria as I know what planaria are and what they look like. These "lines" are motionless except that every once in a while, on the bigger "lines", a string will come out as if to look around and then go back into the "line". The "lines" are 1mm - 2mm long and most of them are perfectly straight but some do curve a little.
I never had these before when I had my pleco in the tank but since I moved, I rehomed the pleco at the same time so the two goldfish would have the tank to themselves. The room the tank is in gets some morning sunlight blocked by vinyl mini-blinds (and I'm planning on replacing them with light-blocker blinds since my 65G is getting a little more algae growth than it had when the pleco was in it. I've Googled for worms, lines, etc. on glass of aquarium and can't find any other images that look like these.
The tank is healthy with ammonia/nitrites at 0.0ppm and nitrates at less than 20ppm before my weekly 25% PWC. I don't feel like I'm over-feeding but it's possible since the pleco isn't in there any longer. Actually, when the pleco was in the tank, the goldfish would steal some of his algae thins as they softened up if he didn't eat them fast enough... so I really think the tank and goldfish are getting less food than before. The greenish color to the water is because I took these pics with the macro-underwater setting on my digi-cam since that was the only way I could get these things to show up. The water is clear and the "lines" are actually darker color like a greenish color.
I thought it was a weird algae at first until I saw one of the hair things come out. There has been a slight buildup of a biofilm (possibly a very thin coat of algae) on the glass since I moved and rehomed the pleco and you will see the area surrounding these "lines" is cleaner than the rest of the glass... almost like these things are eating the biofilm/algae. I also noticed these lines in my canister filter when I did maintenance on it today but did not realize they were "alive". I actually thought they were needles from my hornwort although I never noticed one of the plants in bad shape where it did a needle drop. I did have to use the sprayer of my faucet to get these lines off the inside of the canister housing which struck me as odd but I still never thought about them being some kind of life form.
Any suggestions as to what they are?
I never had these before when I had my pleco in the tank but since I moved, I rehomed the pleco at the same time so the two goldfish would have the tank to themselves. The room the tank is in gets some morning sunlight blocked by vinyl mini-blinds (and I'm planning on replacing them with light-blocker blinds since my 65G is getting a little more algae growth than it had when the pleco was in it. I've Googled for worms, lines, etc. on glass of aquarium and can't find any other images that look like these.
The tank is healthy with ammonia/nitrites at 0.0ppm and nitrates at less than 20ppm before my weekly 25% PWC. I don't feel like I'm over-feeding but it's possible since the pleco isn't in there any longer. Actually, when the pleco was in the tank, the goldfish would steal some of his algae thins as they softened up if he didn't eat them fast enough... so I really think the tank and goldfish are getting less food than before. The greenish color to the water is because I took these pics with the macro-underwater setting on my digi-cam since that was the only way I could get these things to show up. The water is clear and the "lines" are actually darker color like a greenish color.
I thought it was a weird algae at first until I saw one of the hair things come out. There has been a slight buildup of a biofilm (possibly a very thin coat of algae) on the glass since I moved and rehomed the pleco and you will see the area surrounding these "lines" is cleaner than the rest of the glass... almost like these things are eating the biofilm/algae. I also noticed these lines in my canister filter when I did maintenance on it today but did not realize they were "alive". I actually thought they were needles from my hornwort although I never noticed one of the plants in bad shape where it did a needle drop. I did have to use the sprayer of my faucet to get these lines off the inside of the canister housing which struck me as odd but I still never thought about them being some kind of life form.
Any suggestions as to what they are?
