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Discussion Starter · #1 ·
Around 2 months in and i am still having problems with algae. Its growing on everything in the tank and is like green cotton candy. The plants are growing well and very quickly and from my drop checker is a nice green colour. I am also dosing EI from JamesC's sticky. Included are two pictures of the algae, coulf you ID the algae for me and give me some ideas on what is causing it!






Thanks
 

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Looks like green hair algae.
My guess is that you have excess nutrients.
Since your plants are still growing means that they are getting the nutrients they need and then some, the excess is whats feeding the algae.

What are you dosing? What are your tank specs?
 

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I think that ID is incorrect. I have had this algae and I have had hair algae. This is not hair. I was never able to come up with the proper ID...

It feels slimy if you try to pull it out, right?
 

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Never the less if his plants are growing fine and this algae is taking off I still think it's excess nutrients.
 

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That's almost certainly excess nutrients. It wouldn't hurt to bump the Co2 up a tad (unless you see the fish in distress), but I would definately cut down on the nutrients...maybe only dose 1/2 the normal for the next week and see if things improve. This, of course, happening after you remove as much of the algae by hand as possible. The gauge for the decrease in dosing will be if the algae still increases or not. I've had the same thing happen before and that's what it was for me. I cut the dosing way down and it fixed itself, but I had to remove pretty much all affected plant matter and let it grow back on its own.
 

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Discussion Starter · #6 ·
I am currently dosing :

30ml solution or 1/2 tsp KNO3 3x a week
18ml solution or 1/8 tsp KH2PO4 3x a week
10ml or 1/8 tsp tropica + 3x a week
 

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Discussion Starter · #8 ·
Ok, thanks for that but im not sure on the BBA ID. Some else has suggested cladophora?
 

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I am currently dosing :

30ml solution or 1/2 tsp KNO3 3x a week
18ml solution or 1/8 tsp KH2PO4 3x a week
10ml or 1/8 tsp tropica + 3x a week
This doesnt tell us much until we know how big your tank is.

I would suggest cutting all that in half.
1/4 tsp kno3
1/16 tsp kh2po4
1/16 tsp tropica (is this trace?)
 

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Try this: (Wö£fëñxXx's dosing)

50% WC change weekly
± 1/4 tsp KN03 3x a week
± 1/16 tsp KH2P04 3x/week
± 1/16 tsp K2S04 3x a week
± 5 mL Trace 3x a week
 

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I think that ID is incorrect. I have had this algae and I have had hair algae. This is not hair. I was never able to come up with the proper ID...

It feels slimy if you try to pull it out, right?
Rhizoclonium if it gets longer than about 1 cm. There might be some Oedogonium mixed int there and few diatoms. You need to deal with CO2, it's not to do with excess nutrients.............
Add more biomass, clean the tank more, watch the CO2 etc, Rhizo is a sign of a neglected tank.

FYI, Digsy nailed it with the CO2.

It's easy to kill, you can do an Excel treatment, a good cleaning, scrub etc, then add some more plant biomass if need be, cheapo plants till the others fill in, and add good CO2, reduce the light etc.

I have excess nutrients all day every day, I do not have this algae, thus I can easily and have for many years, handily disproven the "excess nutrients calims".

You cannot use a loused up tank as a control, by definition, such a tank is a lack of control, not a treatment tank.

You need a well run tank, then add "excess nutrients" and watch for a response.

The well run stable tank is your control and reference, not a "who knows what is wrong" tank like this one.

You also need to be specific, general things like excess nutrients #1 does not say what nutrient, nor #2 says what ppm or concentration is "excess".

If you do not know what nutrient, nor what concentration is required to induce the algae, you know very little about the mechanism of inducement.

I do not even need to know what is causing the algae here, all I need to know is what it is not to show that excess nutrients are not a cause.

I have shown/demonstrated and repeated this so many times for so many years/decades now. Maybe I've just been lucky a 1000 X in hundred different set ups as have others?

I think not.

Regards,
Tom Barr
 
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