Green spot Algae

[Vítor]

Hey guys a couple days i started noticing that my bucephalandras and my anubias got some o gsa, then i read about them and all i found is that appear either with low phosphates or high phosphates,and high light also promote this Algae, by the time it started showing up i wasnt dosing any fertilizer so i thought it would be the lack of phosphates in the water, i also dimmed twice my light (twinstar 45B). But it doesn't look any better actualy i think it kept growing. I dimmed my light again today ,did a water change and i dosed the Tropica specialised. You guys now what im doing wrong ? Or what other things that can promote gsa?

[Zac]

On 8/14/2023 at 6:56 AM, Vítor said:

Hey guys a couple days i started noticing that my bucephalandras and my anubias got some o gsa, then i read about them and all i found is that appear either with low phosphates or high phosphates,and high light also promote this Algae, by the time it started showing up i wasnt dosing any fertilizer so i thought it would be the lack of phosphates in the water, i also dimmed twice my light (twinstar 45B). But it doesn't look any better actualy i think it kept growing. I dimmed my light again today ,did a water change and i dosed the Tropica specialised. You guys now what im doing wrong ? Or what other things that can promote gsa?

I’m starting to get green spot algae as well on my anubias. I noticed it starting when I turned my light on an extra 10% brightness for an extra hour daily. My lights only on 7hrs per day tho which is odd. I’m going to get some Amano shrimp and nerite snails and hope that helps. Nerite snails are supposedly able to get rid of green spot algae pretty quickly. I’d suggest investing in some as well. Remember it takes about 2 weeks to see any changes once tank conditions are adjusted. Rather than dimming it, maybe try an hour less per day. You can also dose easy carbon or excel if you don’t have any plants like valisneria

If you really want to you can try the blackout method for a couple days…but there’s a risk in stressing your plants

Edited August 14, 2023 by Zac

[Mmiller2001]

If I see GSA, I raise PO4. The current GSA will not go away but it will stop its progress. I remove the leaves with it already present. 
I’m pushing about 200 par at the substrate and see no correlation between light intensity and GSA. That said, slower growers could be susceptible to higher light.

[Vítor]

On 8/14/2023 at 3:53 PM, Zac said:

I’m starting to get green spot algae as well on my anubias. I noticed it starting when I turned my light on an extra 10% brightness for an extra hour daily. My lights only on 7hrs per day tho which is odd. I’m going to get some Amano shrimp and nerite snails and hope that helps. Nerite snails are supposedly able to get rid of green spot algae pretty quickly. I’d suggest investing in some as well. Remember it takes about 2 weeks to see any changes once tank conditions are adjusted. Rather than dimming it, maybe try an hour less per day. You can also dose easy carbon or excel if you don’t have any plants like valisneria

If you really want to you can try the blackout method for a couple days…but there’s a risk in stressing your plants

Mine is already six hours per day in the begginning i had 8 hours per day full power , then i changed to six hours a day, then i dimmed my light about 30% and now dimmed another 15% i think i will wait and see if it gets better if not i will get some nerite snails or use some Excel so my plants don't die and keep adjusting or even buy a phosphate test so i know if it's either the phosphates or the light

[JoeQ]

On 8/14/2023 at 2:52 PM, Vítor said:

Mine is already six hours per day in the begginning i had 8 hours per day full power , then i changed to six hours a day, then i dimmed my light about 30% and now dimmed another 15% i think i will wait and see if it gets better if not i will get some nerite snails or use some Excel so my plants don't die and keep adjusting or even buy a phosphate test so i know if it's either the phosphates or the light

Turning down your light for an anubias is usually a bad strategy because you only endup starving your other plants, compounding the problem. A better strategy is to use tall plants to provide the shade they need.

Edited August 14, 2023 by JoeQ
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