Aquarium is never clean - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 6 Old 10-23-2010, 04:55 PM Thread Starter
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Aquarium is never clean

I need help! This happens every time I try to clean my 90 gallon tank. The water is green overall, so it never looks clean. But also, all of the junk on the bottom swirls up into pools of decomposing food, etc. Even when I vacuum the bottom, when I put in more water all of the stuff in places where I can't reach swirls out and settles over the nice clean sand. Some of the sand also has algae growing on it, I think. Some of it is greenish-brown, and it won't come off in the vacuum. Is that algae growing on the grains of sand? Also, I got a nice blue backdrop with the tank, and I put it up a while ago. It is pressed up against the glass just like a normal background, but it doesn't look blue like when there was no water in the tank. Is that just because the water is green? And is there a good cure for green water? I know you can replace some of it with distilled water, but I can't buy 30 gallons of distilled water and put it in gallon by gallon. Will any algae killer work? I've got some that's recommended for tanks with plants. How can I get the aquarium looking clean in general? Help!

RIP fire eel
why did you think it was a good idea to keep going over the top of the tank
when you realized you couldn't breathe outside water?
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post #2 of 6 Old 10-24-2010, 12:20 PM
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post #3 of 6 Old 10-24-2010, 01:41 PM
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If you have that much food on the bottom even after you vacume the sand and gravel you are most deffinetly overfeeding. What type of filtration are you running?
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post #4 of 6 Old 10-24-2010, 07:00 PM
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For the algea on the walls get an octolontis.
For the uneaten food get ghost shrimp and more importantally stop overfeeding.
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post #5 of 6 Old 10-26-2010, 07:13 PM Thread Starter
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Wow sorry it took me so long to get to this post. I have a pleco that takes care of the algae. The oscar is just a messy eater naturally. I've started feeding in pinches instead of shaking a little amount of pellets out, which should cut down on uneaten food. But it's really annoying when my sister tells me she can't tell the difference after I spend an hour vacuuming the aquarium.

RIP fire eel
why did you think it was a good idea to keep going over the top of the tank
when you realized you couldn't breathe outside water?
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post #6 of 6 Old 10-26-2010, 07:41 PM
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Sounds to me like you need a bottom feeder of some sort but I have no idea what you could put with an oscar because from what little knowledge I have of them they will eat anything that will fit in there mouth. How many hours a day do you have the lights on in the tank? If your water is green then here are some things you can try if you have not yet a three day blackout followed by a large water change will hit it hard and sometimes may clear it. A UV steriliser/clarifier or diatom filter will clear it up very quickly and is often the only way to clear it.
A new method is to use freshly cut 1-2 year old willow branches about 0.5-1cm in width. Place these in your tank vertically so they go from the substrate to a few centimetres above the water's surface. After a few days they will start to grow roots and the green water should start to clear. When cleared remove the branches from the water.
I have not personally tried any of these because I have luckly not had that kind of algae but those are things it says to try here:
James' Planted Tank

Kindest Regards,

Keeping fish its not a hobby it is a passion!

I have a 55 gallon, 40 gallon, 29 gallon, 20 gallon tank, 5 gallon , and a 2.5 gallon all with real plants.
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