Cloudy tank - 2 months - read all the threads - Page 2 - The Planted Tank Forum
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post #16 of 22 (permalink) Old 06-22-2020, 06:34 PM
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New tank, new filter, posted water parameters shows it's not cycled. Looks like a standard bacteria bloom. What exactly is the media you have in the canister filter?
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post #17 of 22 (permalink) Old 06-22-2020, 06:43 PM
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Looks like a standard bacteria bloom.
That's what I was thinking. It happened to me once when I swapped out a HOB for a new canister filter. Even though I used the media from the HOB it took awhile (not 2 months though) to stabilize.
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3 planted nano community fish tanks.
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post #18 of 22 (permalink) Old 06-23-2020, 05:12 AM
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If their chemoheterotrophic bacteria having wood in tank and adding leaves, twigs, peat to tank should help them go away. They use oxidized minerals in the water as their energy source and feed on waste and lower bacteria/algae as food source. Adding tannins (humic and fulvic acids, natural chelates) to tank water will bind those oxidized minerals up into compounds that those bacteria have no way to process, basically youíll starve them of their energy source.

Also that bright of light, for that many hours, on that shallow of a tank is going make problem worse by fostering water born green algae which is one of the food sources chemoheterotrophic bacteria use, they canít fix their own carbon so they either get it by ingesting decomposing matter or being a predator of other autotrophic bacteria or algae. Doubt very seriously you have a organic matter problem at this stage.

After tank matures and starts producing it own organic acids problem will go away on its own.
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post #19 of 22 (permalink) Old 06-23-2020, 06:15 AM
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If their chemoheterotrophic bacteria having wood in tank and adding leaves, twigs, peat to tank should help them go away. They use oxidized minerals in the water as their energy source and feed on waste and lower bacteria/algae as food source. Adding tannins (humic and fulvic acids, natural chelates) to tank water will bind those oxidized minerals up into compounds that those bacteria have no way to process, basically youíll starve them of their energy source.



Also that bright of light, for that many hours, on that shallow of a tank is going make problem worse by fostering water born green algae which is one of the food sources chemoheterotrophic bacteria use, they canít fix their own carbon so they either get it by ingesting decomposing matter or being a predator of other autotrophic bacteria or algae. Doubt very seriously you have a organic matter problem at this stage.



After tank matures and starts producing it own organic acids problem will go away on its own.
You forgot to drop the mic Dave!

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post #20 of 22 (permalink) Old 06-25-2020, 02:12 AM Thread Starter
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wow - such in-depth discussion - this was great!

Here's the update (and my thoughts based on what I've read)

Current solution
I did a 90% water change and added an external canister filter (carbon, filter floss and sponge media). The water is mostly clear and stable over the last few days (not getting cloudier again). Now that I could see into the tank again, I could trim out some of the dying leaves.


My guess is that the good bacteria never got the edge when the tank cycled. The internal filter sponges just didn't do the job. Once the cloudy bacteria started, it caused a cycle of plant dying, which just fueled the cycle more. Add a little green algae bloom along the way, and the whole system was out of balance. Even though I changed 20% water, ran more lights, ran UV sterilizer, it was never enough.

I'm going to leave the external canister running, plus the addition of the Seachem, to try to keep the edge for the good bacteria. All the plants are pearling again, so that's a good growth sign.

Thanks again !

Paul
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post #21 of 22 (permalink) Old 06-25-2020, 09:26 PM Thread Starter
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Here's the current view - still clear - looking happy!
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post #22 of 22 (permalink) Old 06-25-2020, 09:28 PM
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Looks much better now.

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