Algae??!??

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tedens11

Aquarium Advice Newbie
Joined
May 5, 2014
Messages
4
Does anyone know what kind this is and how to prevent. It's growing even on my gravel. Please help ImageUploadedByAquarium Advice1401496849.387788.jpgImageUploadedByAquarium Advice1401496863.296222.jpg
 
High nitrates and too much light are the usual cause of unwanted algae. High levels of phosphorous in the water will also do it.

I had a bad case of black brush algae + algae that looked like yours becasue my tank was getting some direct sunlight, lights in hood were on too long and not enough water changes.

Blocking sunlight, limiting artificial light to 6 hours a day and more frequent (now weekly) water changes eliminated the problem. Zero algae now and crystal clear water ...... and zero algae on decorations.
 
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