Ssdangeranger
Active Member
Grows on glass magnet will get some but not all. Have to scrape off the rest
ID and help please
- Thread starter Ssdangeranger
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GDA. Green Dust Algea.
Get snails. LOTS of em 
Ssdangeranger
Active Member
Snails don't do much to it. Got 5 huge turbo snails and 5 astraea snails and they don't even leave a trail
No they wouldn't touch it much, its almost like Coralline, but much worse. Its tough to get rid of this stuff. I just kept on it, scraping when I saw it, eventually it went away.
I notice it shows up more where there's a window present.
Myth, its not casued by the daylight.
Mike J.
2500 Club Member
Thank you. I didn't want to debunk that myth - once again.
Day light (UV light) does cause algae growth in the home aquaria. One side of my tank faces an East window. There and only there do I get the green film algae growing on the glass. Newer homes have glass windows that have something in them that stops UV spectrum from passing through. I however live in a 40+yr old trailer that does not. Even my eye glasses that have transition lenses will darken if placed in the sun coming through my windows. It is not a myth. It just may not happen to all because of the type of glass in the home window.
https://www.guardian.com/cs/groups/climaguard/documents/native/gi_004941.pdf
https://www.guardian.com/cs/groups/climaguard/documents/native/gi_004941.pdf
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We are talking about Green Dust Algae.
And I have my 240g tank in direct morning sunlight, for a few hours each morning, and have had it there for years. In a clean system it does not grow algae, I've never had any trouble with algae, even when my phosphates were really high.
And I have my 240g tank in direct morning sunlight, for a few hours each morning, and have had it there for years. In a clean system it does not grow algae, I've never had any trouble with algae, even when my phosphates were really high.
But isnt' the film algae easy to just wipe off? GDA has to be scraped off like Coralline.
I believe we're talking about the same thing. If I let the film algae sit and accumulate it grows into the tiny microscopic pores of the glass and it does seem to harden. If I routinely remove it, keep nutrients in check and have the right types of snails I do not have a problem with it. John at ReefCleaners identifies the growth as Green Film Algae. Anything that just wipes of easily is more of a green/blue cyanobacteria to me. :biggrin1:
Ssdangeranger
Active Member
I have a 4 month old 55 gallon tank. I have purple coraline growing and a skimmer rated for 100 gallons and I'm running filter floss and a little carbon in a canister filter. I haven't had my parameters check for a while but since I have coraline growing I'm sure they are in check
Ssdangeranger
Active Member
Also I'm running a uv sterilizer
