Brown Spots on Glass and Rocks - Please Help

[nagukush]

Hi Friends !

I find that many Rusty-Brown spots are growing on my Rocks and even on the front glass. What are these ? Some kind of Algae ? How do I fight them back and how to remove them ?

Please Help !
Thanks !
Kush

 

[Malefic23]

It's algae... you can reduce the amount of food and light in the tank, and that will help. Scrape off the stuff on the glass with a sponge or a plastic card...library card works pretty well.

 

[dspittard]

library card works pretty well.

Who goes to the library any more?

 

[FtwayneFish]

I dont all my books are here lol. Brown algae is from not enought light. plantgeek.net.

 

[Bk718]

yup not enough light or it being a newly setup tank. can use a regular aquarium scrub sponge and get it off without a problem..

 

[joestyx]

my pleco got rid of mine real quick after i got him

 

[Snow1576]

That happened to me when I first set up my tanks, I would clean glass everyday. It goes away on it's own, I think it was like a month later.

 

[jm1212]

brown algea is a diatom caused by the release of sillicates in the glass. it is pretty common in new tanks.

 

[Dave Noel]

I had that problem too a little while ago (new tank) then it turned to green algae, I reduced the amount of light during the day now I have that in check and everything is going well in my tank.

It will go away like everyone is saying.

 

[sm100378]

If the rock has enough iron as part of its composition, it will exhibit brown, rust like (oxidation). If it is upsetting the chemistry of your water, you can try limestone or some other type of rock/mineral.