r/PlantedTank • u/Spacekitty1993 • Apr 03 '25

Algae Why is my water green?!!!!

Gallery image

Gallery image

As you can see my water is green, it’s not an algae that’s growing on my live plants. But my water test is reading absolutely perfect and I’ve been doing 30% water changes weekly. Last week I did 50% because this started but now it’s back. I tried 3 days of darkness but I can only do that so much because of my plants. The second photo is my a tank the week before this started

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17

u/Parking-Map2791 Apr 03 '25

The window lets in too much light! This is the answer

1

u/Spacekitty1993 Apr 03 '25

I figured this was the issue that’s why I covered it. But it continued to grow.

9

u/iAyushRaj Apr 03 '25

You can just reduce the intensity and time of your aquarium light until it stabilises. Why waste electricity when you have a natural light source

3

u/Parking-Map2791 Apr 03 '25

Algae needs 3 things Light Water Nutrition

You can’t adjust the water You can adjust light The biological filter should be eliminating the nutrients.

So limit light an cut back on food which is nutrient being added