Need help preventing another BGA attack - The Planted Tank Forum
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post #1 of 4 (permalink) Old 03-06-2010, 05:05 AM Thread Starter
Algae Grower
Join Date: Mar 2010
Location: Colorado
Posts: 11
Need help preventing another BGA attack

Hi everyone,
I'm new here and relatively new to planted tanks. I am currently treating one of my tanks for BGA using erythromycin. I understand that this anti-biotic will kill my cycle so I want to start over and do it right. Below I will list the specs for the tank and I would greatly appreciate any advice to keep this BGA infestation from happening again!

Tank: 10 gal. divided with two bettas
Filter: sponge filter
Plants: foxtail, baby tears, anubias, dwarf sword, crystalwort
Lighting: Aquaglo 15 watt/ 18000K for 10 hrs/day
Substrate: regular gravel mixed with laterite
Husbandry: 25% water changes twice a week
Established: 2.5 months
Ferts: Seachem flourish root tabs, Seachem flourish comprehensive (just used a few times - not sure how much to use because of the algae)
Parameters (usually): amm.0, nitrite 0, nitrate between 0 and 5ppm, ph 7.5, kh 3, gh 7.

All of my other tanks are fine with my practices but something is definitely wrong with this one. I'm hoping that you experts can help me create the right balance.
Thanks so much for looking!
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post #2 of 4 (permalink) Old 03-07-2010, 03:18 AM
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Location: WA
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More water flow will help you so you dont get it again. Just a sponge filter really dont give you much water movement. One other thing that will help it to not come back is cut back on feeding. Over feeding will cause it to come back.

Whats this green fuzzy stuff thats growing in my tank.
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post #3 of 4 (permalink) Old 03-07-2010, 03:58 AM
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Location: Phoenix/Flagstaff, AZ
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Water flow is key to algae control - but not too much flow. If your fish/plants are blowing around a lot, then you know there's too much.

And as Madfish suggested, controlling the amount of food you put in the tank will help too.

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post #4 of 4 (permalink) Old 03-07-2010, 04:08 AM Thread Starter
Algae Grower
Join Date: Mar 2010
Location: Colorado
Posts: 11
The sponge filter does not provide a lot of flow - but bettas don't do well with a lot of flow so I'm not sure what I'm going to do. The tank is divided with plastic canvas so that creates another barrier. I increased the rate of flow with the sponge filter and I could add an air stone to the side without the filter...
I've read that BGA can grow in tanks with no nitrates. What would you guys recommend for my tank (which is low-light low tech) for dosing nitrates? Or would you recommend that I just increase the bio-load?

Edit: I only feed the fish what they can eat so over-feeding is not the issue, but thanks!

Last edited by ramlover22; 03-07-2010 at 01:06 PM.
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