Tropical Fish Keeping - Aquarium fish care and resources

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-   -   sand getting nasty (http://www.tropicalfishkeeping.com/beginner-freshwater-aquarium/sand-getting-nasty-5594/)

mvirata 05-03-2007 06:52 PM

sand getting nasty
 
Hi Guys,

I run two tanks with pool filter sand. They have both been up for about 8 weeks now. Fish appear healthy and I do weekly water changes of about 25 - 30%.

Each tank has two plants and 1 cm sand substrate. I have small piles of bigger gravel to plant my plants in, to keep it in place.

Lately the sand is looking kinda nasty. It lost its sand color and appears to starting to get covered with brown algae. I churn the sand about once a month with a long stick because I heard it is good for some type of anerobic bacteria.

Any idea why the sand is getting icky, I mean I know it is brown algae but don't the shimps and the pleco eat the algae. I guess there is nothing I can do but does anyone have any tips?

I always see pictures of fish tanks on here and the sand looks pristine and many have been up and running for a longer time than mines.

Any help is appreciated.

mr.bojangles 05-03-2007 08:11 PM

u need to gravel wash

Lupin 05-03-2007 08:15 PM

Mvirata, the sand must be disturbed more frequently than just once a month. If not disturbed, the sand becomes compact quickly and will cause discolored spots which are actually anaerobic spots.

mvirata 05-04-2007 11:11 PM

Quote:

Originally Posted by Lupin
Mvirata, the sand must be disturbed more frequently than just once a month. If not disturbed, the sand becomes compact quickly and will cause discolored spots which are actually anaerobic spots.

So what is anaerobic bacteria and how does it affect my fish other than the discolored color.

Age of Aquariums 05-04-2007 11:12 PM

They should go away.

mvirata 05-04-2007 11:20 PM

Quote:

Originally Posted by Age of Aquariums
They should go away.

How often then, once a week? Every time i mess around with the sand the tank gets cloudy with dust particles should I do this at night when the lights are out. I don't want to stress out my fish.

Age of Aquariums 05-04-2007 11:23 PM

Maybe once a week, I think once every other week would do, one of the other members will probably correct me if I'm wrong.

Lupin 05-06-2007 10:08 PM

Anaerobic spots release toxins which are quite harmful to the fish. They are dead areas where circulation of air is very insufficient or lacking.


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