algae - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 20 Old 09-17-2006, 05:33 PM Thread Starter
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what are the most effective ways to get rid of algae?

she has tried algaecide, didnt work..

covered the tank with black blanket for three days to minimize light and algae growth...didnt work...

she does water changes every day...doesnt work...

it either stays the same or gets worse...what is the solution?

tank stats are the time of algae growth the ammonia was very high...


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post #2 of 20 Old 09-17-2006, 05:39 PM
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Any chance of a pic? What kind of algae is that?
There are various types of algae in which removal can be quite different.

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post #3 of 20 Old 09-17-2006, 07:52 PM
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I've found that snails are a blessing. Snails are freebies with any live plant purchase, no matter how well you think you shake them off. Anyway, it seems that the tanks with the most snails have less of the hard to remove algae (green to black stuff that grows on rocks and glass). (The stringy stuff I remove by hand, and is only prevalent in one of my tanks.....not sure why, perhaps because of the lighting)

I have two types of snails:
(1) cornet (like a triangle?) shaped snails that live in the substrate and will be all over the glass during the night, I don't know if they really eat the algae? I think they break down the waste though.
(2) and then the ram's horn shaped-shell snails -- they love algae and I believe they help keep the water sparkling clear!

When my snails die off, I know there is a problem with the tank, and algae will start becoming a problem. I could be off about how useful they are, but it seems that a tank with the ram horn snails requires less maintenance. Not sure if you want to introduce them to your tank, as they will certainly multiply and I will hand pick them out - the ram horn one's don't multiply nearly as fast as the cornet shaped ones.

Other thing to consider is how much light the tank is getting -- make sure you get the light hooked up to a timer so the tank doesn't get excessive periods of light a day.
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post #4 of 20 Old 09-18-2006, 01:35 AM
It depends on the algae. Some fish like Otos, certain plecos (Brisstlenose for example), farlowellas (get big), Cherry barbs, Siamese Algae Eaters, Some shrimp, snails, etc. Most will not eat all types of algae.

The black out method willl work, but the tanks need to be blacked out for at least a week.

Plants can work, but it can be a delicate balance. Too many plants and not enough of one nutrient can kill plants, thus, creating more nitrates.

Lighting can also effect the growth. Too much from the tank lights and/or nearby light from windows can also promote algae growth.

Not enough gravel cleaning/water changes will promote algae growth. This is becuase if you have a good filtration and a well established tank with lots of nitrifying bacteria, the ammonia and nitrITES may not rise, but the nitRATES can.
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post #5 of 20 Old 09-18-2006, 12:56 PM Thread Starter
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none of these seem to be the problem, she does frequent water changes, as i stated...and the tank is NOT near a is a very dark room...light stays on for about 8 hours a day, and the black out method did NOT work.

the algae is not growing on anything, it is making the water green and cloudy. i do not think that buying another fish at this point would be effective since her tank is most likely overstocked as it is. she has 3 platys, 1 swordtail, 2 danios, a tiger barb and 6 baby mollies. oh....and its a 10 gallon tank.


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post #6 of 20 Old 09-18-2006, 01:01 PM
Are there any live plants in the tank?
post #7 of 20 Old 09-18-2006, 01:03 PM Thread Starter
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no...she had live plants the first time she set up a tank but they (like the fish) kept dying so she gave up. she wont do live plants.

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post #8 of 20 Old 09-18-2006, 01:07 PM
ok, thats the only thing I could think of would be dead plant matter in the tank we had the same problem water turning cloudy and green turns out it was the plant matter. Did she clean the gravel really well after she took the plants out, there might be some left in the gravel causing the problem. Sorry if its not much of a help. I havent had to deal with algae much.
post #9 of 20 Old 09-18-2006, 01:32 PM
Ahh. the dreaded green water. GW is an algae bloom. Typical causes is excessive nutrients, but overfeeding, too much light, not enough water changes/gravel cleaning,

1. UV filter or Diatom filter - Diatom filter is rather messy and can only be run for several hours. UV can be run 24/7/356 if needed.
2. Reduce the amount of feedings
3. Reduce amount of light the tank is exposed to. If the lights are on for 12 hours, try reducing to maybe like 10 hours
4. Perform more frequent gravel cleaning/water changes.
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post #10 of 20 Old 09-19-2006, 01:43 PM Thread Starter
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UV filter? can be placed right into a regular filter? or is this a separate mechanism?


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