Help to eliminate algae

[nijat11]

Hello everyone!
I need a help to eliminate green fuzz algae.
My tank s 1250l + 250l sump. (250cm x 70cm x 70cm)
My filration is 10000l/h pump and 2x maxspect XF330. Inside sump KOI filter mats.
My weekly fers 15ppm NO3, 2ppm PO4, 8ppm K, 0.3ppm FE, 0.1ppm Mn I dose daily.
Last 2 months, weekly water change 50%, before that once in 2 weeks.
CO2 start 3 hours before lights go on.
My lights 4x chihiros universal wrgb 1200, 24x Daytime Matirx Sun Pro modules. Light runs around 65%. Par at substrate at average 90-100 umol
My problem is I had blooming of fuzz algae on all leaves, probably baceuse I had lean dosing, since I increased ferts, trimmed and replaced infected plants, it became better.
But still i see fuzz algae on a lot of leaves, I`1m feeling that I will need to restart tank from 0.
Will appreciate all your advises!
Thank you in advance.

 

[Naturescapes_Rocco]

Share some pics! It might help us identify.
That's not crazy strong lighting, so I don't think your light is overkill.

Years of experience have shown me that green hair algae types frequently happen from a lack of NO3 or CO2. Not always, just most of the time.
Short, fuzzy algae on edges of leaves is usually a sign of too long of a photo period (don't exceed 7-8 hours) or a lack of nutrients in the water column.

Long, skinny green strands are almost always (in my tanks at least) CO2-related issues.

So yeah, post pics and we can help!

 

[nijat11]

Share some pics! It might help us identify.
That's not crazy strong lighting, so I don't think your light is overkill.

Years of experience have shown me that green hair algae types frequently happen from a lack of NO3 or CO2. Not always, just most of the time.
Short, fuzzy algae on edges of leaves is usually a sign of too long of a photo period (don't exceed 7-8 hours) or a lack of nutrients in the water column.

Long, skinny green strands are almost always (in my tanks at least) CO2-related issues.

So yeah, post pics and we can help!

Thank you for your answer. My photoperiod is 7 hours. I bought Hanna CO2 kit, grabbed water samples from different parts of aquarium. was showing 50 ppm everywhere. I decreased it, did testing for another 2-3 days from different parts of auqairum (bottom, middle, top, corners) 30 ppm everywhere. It is night currently here, I will post some photos tomorrow. Thank you again!

 

[nijat11]

One of images that i made a week ago.

 

[nijat11]

Just to give more context, this was ongoing for couple of months, at some point I have decided to purchase ORP meter as additional help device. After connecting and calibrating it showed ORP around 180. I did big water changes, mass trimming of infected leaves, substrate vaccuming, moss removal. After that ORP increased to 350, now at averages ORP runs around 420-450.

 

[nijat11]

More photos

 

[CincyScaper]

Not sure what ORP is, curious if others know.

Do you have this algae on all the new leaves or just old one ? Do you have any healthy growth ?

 

[nijat11]

Not sure what ORP is, curious if others know.

Do you have this algae on all the new leaves or just old one ? Do you have any healthy growth ?

ORP most commonly stands for Oxidation-Reduction Potential (or redox potential) in science and water treatment. It measures a solution's capacity to either gain or lose electrons, indicating its ability to oxidize or sanitize contaminants. Basicalllt when you have a lot of organic/disolved organic ORP drops, which reduces oxidation.

Regarding new growth, this is a bit trick one.
As example I have Rotala Orange Juice and Ludwigia Super red, planted couple of week ago and they converted to fully submersed state and I will say new growth is very healthy. But I also planted AR mini and AR rosanerveg and still see algae on new leaves, this could be because they are still converting to submersed form, but not sure. I`m wainting light to come on, and will post other pictures as well.
Meanwhile I just got some SAE, maybe these guys will help me.

 

[CincyScaper]

Interesting! almost like the reverse of TDS .
Good that the fast growers are algae free.
2 months seems a long time for conversion from emersed to submersed forms. Maybe these were planted more recently ?
It is also possible that the stems/leaves are going through a transition stress from the change from lean dosing to higher dosing.
You could just trim away all the old leaves/stems with algae and replant the healthy tops.
Do you use active or inert substrate ?

My overall take is that plants are highly adaptable and typically just need time to adapt to a new condition as long as the conditions are stable around them.

From what you have said

• Co2 is stable
• Lighting is stable
• Is your water hardness stable ? KH/GH ?
• Need to know if the nutrition is stable - do you know if your nitrate is stable through the week ?

---- i am not very familiar with DIY fert mix and use all in one - APT, Maybe someone else more familiar with the ratios can comment.

If these are all stable, then i think just repeating the trim replant cycle untill the alage does away would be the way to go. If you find algae appearing on newer leaves, then i think an algicide may not be a bad idea.

Hope these help.

 

[nijat11]

Interesting! almost like the reverse of TDS.
Good that the fast growers are algae free.
2 months seems a long time for conversion from emersed to submersed forms. Maybe these were planted more recently ?
It is also possible that the stems/leaves are going through a transition stress from the change from lean dosing to higher dosing.
You could just trim away all the old leaves/stems with algae and replant the healthy tops.
Do you use active or inert substrate ?

My overall take is that plants are highly adaptable and typically just need time to adapt to a new condition as long as the conditions are stable around them.

From what you have said

• Co2 is stable
• Lighting is stable
• Is your water hardness stable ? KH/GH ?
• Need to know if the nutrition is stable - do you know if your nitrate is stable through the week ?

---- i am not very familiar with DIY fert mix and use all in one - APT, Maybe someone else more familiar with the ratios can comment.

If these are all stable, then i think just repeating the trim replant cycle untill the alage does away would be the way to go. If you find algae appearing on newer leaves, then i think an algicide may not be a bad idea.

Hope these help.

I just checked again, I planted them 4 weeks ago. KH-2 GH-6. 1 week ago i started to dose 100ml Easy Carbo daily