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Question about my fish tank2007-11-24 23:39:52

I have a 20 gallon fish tank with a Oscar and Algea eaters. Just in the last couple of weeks the water has been turning green. I cleaned the tank. Cleaned the filters. And it's still really dirty. Any suggestions? Please help!

Answers:

What you are talking about is called green water. This is caused from too much nutrients and sunlight. Feed the fish once a day only what can be can be consumed in 3-5 minutes. No food should be landing on the bottom. When you clean the tank, only drain 1/4 tank of water and gravel vac 1/2 the gravel without stirring the gravel. Some of the bacteria needs to remain in the tank or the tank has to go through ammonia/nitrite cycle when you change too much water. This is stressful for the fish and can cause them to get sick. Only leave the light on 10-12 hours a day. Try feeding Formula 1 or Formula 2 frozen cubes, which are available at pet stores.

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Go to or call your local fish store and ask them for advice. They are usually pretty knowledgable.

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Have you checked the ph levels in the tank. You can get ph checker most places that sell pet supplies.

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Have you tried Aquaclear. It cleans cloudy water.

You changed the water? Most or all of it? Try that.

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Did you place it near a window or change the dressing on any nearby windows? Excess sunlight will make the algea grow quicker. You could also have an especially aggressive type of algea called spirolina (sp). There isn't any way to find out if you have it, the only thing you can do for it is get a better filter and change the cartridge more often until it goes away.

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get one of those shark looking thingys that suck on the side of the tank. they will keep it clean, or even some fresh water snails that your oscar wont eat. they will keep the water cleaner

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Is it in the sunlight?sounds like algae block direct sunlight.

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Keep it out of the sunlight. I cleaned the glass on my tank with a pair of scrubbing magnets. I held the one on the outside of the glass while the one on the inside scrubbed the glass. I hope your filter is an external filter because of the bigger tank. You can buy something that cleans the gravel. It is a clear tube and sucks up a section of gravel and cleans all the debris from the gravel. There is a lot of dirt there. It's been a long time since I had an aquarium.

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continue to do water changes. What are you feeding the oscars? They do poop alot, and the algae eaters are not "poop" eaters. they eat ALGAE.. so make sure you keep the water clean! Get a bigger filter if needed.