Green growth on glass - very hard to remove.

[jarrodaden]

I have a build up on my glass that is green. It is extremely firm and very difficult to remove. I worry if I scrub much harder that I will scratch the glass.

I have tried the big magnet and the brillo pad on a stick with very limited success.

I am already using as little light as possible, but the room gets natural light from the skylights.

Pleco have had marginal results as well.

Any help would be greatly appreciated.

[cichlid1409]

razor blade?

[myjohnson]

Razor blade can scratch the glass if not used carefully.

I just use a credit card and it works fine.

[gotticgs]

can i barrow your credit card to see if it works on mine

[supadave]

The sun light is causing the dark green algae on the glass . I have a tank that sits in front of a window and gets direct sunlight . This is the only tank that gets that dark green hard to remove algae . I'm thinking that the sunlight actually bakes it in more therefore making it a little harder to remove .(strictly just a guess..though) I clean that tank with a small terry cloth and it comes off pretty easy .

[ndnreefer]

+1 on the razor they have plastic versions at most petstores fairly cheap.

[nacra99]

It's Green Spot Algae.
If glass, use a single edge razor.
If acrylic, use a credit card.

[Darbex]

Or get the algaefree magnet. That sucker will remove the algae in one swipe. I got the Great White for my 300G and it destroys it but the magnets are super strong so watch your fingers.

[jarrodaden]

Or get the algaefree magnet. That sucker will remove the algae in one swipe. I got the Great White for my 300G and it destroys it but the magnets are super strong so watch your fingers.

Darbex - Where can I get the great white that you have?

[Darbex]

http://www.petstore.com/Algae_Free_Algae_Magnets_Algae_Magnet_Cleaners-Algae_Free_Sure_Flow_Sure_Grip-AF1111-AQMAMA-vi.html

[CichlidFan]

that magnet is worth more than most of my tanks....smiles.

CF