Why so much brown algae in my tank? - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 6 Old 04-11-2011, 05:52 AM Thread Starter
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Why so much brown algae in my tank?

I recently moved my pufferfish up to a larger tank 125l, when I did so I moved all the ornaments, live and fake plants and substrate from my old tank to my new tank. It came with a larger filter which I have running in conjunction with my old smaller pump. This was 4 weeks ago and since then I have had a constant covering of brown stuff which I presume to be algae all over everything. The only thing I've added to the tank since is 2 small pieces of bogwood which I soaked to stop them leaching tannins which have baby java ferns attached to. The old tank was fully cycled and established with 0 ammonia 0 nitrite and 40 nitrate (I know this is high we live in an agricultural area and this is what comes out the tap)

Why is this happening when it never did before and what can I do to stop it, it looks terrible? Is it my nitrate levels and should I get some RO water instead?

Tank infor:
125l brackish SG 1.006
4 x F8 puffers 2 inches long, fed frozen blood worms etc ever other day
Temp 25
Planted
Lights on for 12 hours per day (Flourescent bulb)
Ammonia 0
Nitrite 0
Nitrate 40
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post #2 of 6 Old 04-11-2011, 05:59 AM
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Sounds like diatoms, which are common in newly setup tanks. They'll go given time but I'd probably reduce your lighting by a couple of hours a day to speed this up
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post #3 of 6 Old 04-12-2011, 04:31 AM Thread Starter
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Sounds like diatoms, which are common in newly setup tanks. They'll go given time but I'd probably reduce your lighting by a couple of hours a day to speed this up
How long do they take to go and how long should I dip my lighting for?
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post #4 of 6 Old 04-12-2011, 04:36 AM
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from what I've read here it could take weeks for diatoms to dissapear but each tank setup is different. I'd reduce your lighting to 8-10hrs per day. More plants would also help use up more of the nutrients in the water, making less available for the diatoms. If you don't already have one, I'd buy a cheap timer plug that allows you to automate your lights:



Amano shrimp and ottos are also very good at eating diatoms, but I guess the shrimp wouldn't last long with the puffers and the ottos wouldn't like the salinity

Last edited by sik80; 04-12-2011 at 04:39 AM.
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post #5 of 6 Old 04-12-2011, 11:24 AM
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I r....since then I have had a constant covering of brown stuff which I presume to be algae all over everything. The only thing I've added to the tank since is 2 small pieces of bogwood which I soaked to stop them leaching tannins which have baby java ferns attached to.

Could you post a picture of the stuff? I have this brown goop too, and have been unable to id it on the algae sites. It is on some plants, ferns, but not on others, anabus. It really really gets into some floating plants, too. Gets on the glass.

I feel like I need to remove everything from aquarium and SCRUB this stuff off.

ANYONE: would a siamese algae eater (real one) deal with this?

Would love to see a pic.

55 Gallon, planted

Cherry Barbs 5
CPD's 6
Porkchop Rasboras 7
German Blue Rams 4
Boesemani Rainbow 2
Siamese Algae Eaters 4
Cories:
3 Lined: 1
Elegans: 3
Pandas: 4

I think I am pushing it, but water quality is holding up fine, and all the fishys seem pretty happy.
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post #6 of 6 Old 04-12-2011, 03:32 PM
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Could you post a picture of the stuff? I have this brown goop too, and have been unable to id it on the algae sites. It is on some plants, ferns, but not on others, anabus. It really really gets into some floating plants, too. Gets on the glass.

I feel like I need to remove everything from aquarium and SCRUB this stuff off.

ANYONE: would a siamese algae eater (real one) deal with this?

Would love to see a pic.
This does not sound like diatoms (brown algae).

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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