My daughter got a fish tank for Christmas. It is a Tetra 54l starter tank. We did all the right things, I think. Set it up and left it with the filter running for 2 weeks before getting fish. We used Aquasafe in the water and use it everytime we change it. The light is on for 8 hours on a timer and it is away from direct sunlight. But, the water is cloudy and green and the algae builds up on the (fake) plants, ornaments and gravel really quickly. We have changed the filters every 3 weeks and it's still happening. Any tips? It looks dreadful and we can barely see the fish!
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