algae problem - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 16 Old 08-19-2010, 05:44 PM Thread Starter
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algae problem

so i've had a 10 gal brackish set up for a few months now. I've been having a nasty algae issue for a few months. I've taken everything outta the tank. I've tried everything... more flow, less light, low grade and high grade phosphate remover and changing out the sand completely... it keeps comming back. I test my water and have has 2 LFS test it... they said everything is where it should be... any suggestions?
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post #2 of 16 Old 08-19-2010, 08:34 PM
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well first let me admit that i am stabbing in the dark as i have not done a brakish tank before..... what are your inhabitants? could an addition assist here? a crab perhaps to eat it?
also what type of filtration are you running? is it possible to add a product i was reading about called Chemi-pure? this stuff works great in nano's so may do well for you look it up and see....

Back in the Game!!! Live Bearers in a 40 Breeder
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post #3 of 16 Old 08-19-2010, 08:42 PM
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What type of lighting (if any) do you have on the tank (Kelvin rating of the bulbs) and how many hours a day do you have the lighting on? I assume since this is a brackish tank you have no plants?
Any chance you know what type of algae? Brown diatoms, green spot, hair algae, etc.

If you don't stand up for something you'll fall for anything...
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post #4 of 16 Old 08-19-2010, 11:21 PM
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If you don't already have plants,Vallisneria and Jave moss are both doable for brackish water,as well as java fern and anubias if the salinity is closer to freshwater than saltwater.These could help use nutrients instead of algae.Also Nerite snails are good algae eaters.By less light,do you mean duration or intensity?Using a lower kelvin rating bulb might help.

Your's truly,
Lee
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post #5 of 16 Old 08-20-2010, 06:05 PM Thread Starter
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Inhabitants- Nothing... i pulled everything out.

Plants- Had anubias and that didn't do to well

SG- 1.015

Filtration- Custom built sump with fluval lab series phostphate remover and activated carbon 200gph

Light- Current USA Nova Extream. Removed 1 bulb running around 6 hours a day

this is what this stuff looks like
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post #6 of 16 Old 08-20-2010, 06:09 PM Thread Starter
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oh and i've switched to RO water purhcased from LFS
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post #7 of 16 Old 08-21-2010, 08:37 PM Thread Starter
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anymore input?
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post #8 of 16 Old 08-21-2010, 09:15 PM
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I'm not 100% postive but it looks like cyanobacteria to me.
Maybe google images for freshwater cyanobacteria and see if it's the same stuff. If so, here's a good article to read:

Cyanobacteria

I'd like for Byron to see and input on your problem as he always has the solution. I'll send him a PM to take a look.

If you don't stand up for something you'll fall for anything...

Last edited by aunt kymmie; 08-21-2010 at 09:17 PM.
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post #9 of 16 Old 08-21-2010, 09:48 PM
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If your saline level is above 1 you will have trouble with plants, I can understand that. Algae occurs because of light and nutrients, and when there are no plants, there is nothing to use the nutrients but algae.

That looks like what I've seen in marine tanks. As I have very little knowledge on brackish tanks, I'm thinking a post in the saltwater section might help. Probably under Saltwater Aquariums to start off.

Good luck.

Byron.

P.S. Just noticed this post was in Saltwater already. Kim linked it to me and I hadn't noticed. I still think that is where help lies though.

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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post #10 of 16 Old 08-21-2010, 10:21 PM
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Agree, as I've seen cyano in marine tanks. One of the S/W guys will come along and they will know how to help w/ the best advice about what to do in this situation.

If you don't stand up for something you'll fall for anything...
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