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Discussion Starter · #1 · (Edited)
Hi everyone! I was gone on vacation for 10 days and when i returned, there was a massive bloom of GSA waiting for me. I put my tank in a state of stasis (Hallf the light and food, no ferts and no co2), however i am trying to identify the root cause of my gsa outbreaks. I never realized how much micro maintenance i did every day to prevent blooms on the tank walls. Attached is a pic of what i am running:

Thanks for the help!
 

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6 hours with lighting mentioned, with no fertz,no CO2,won't help much.
I would resume CO2 (slowly with fishes present ),and full fertz routine, while removing the GSA from the glass.
Would remove the Ray II till I got thing's back on track and would use just the /finnex planted plus for the six hour photoperiod.
Can try spot treating the leaves of plant's with EXCEL or 3% hydrogen peroxide if they have GSA, but I have found that vals in particular aren't fond of either product.
Low phosphate is suggested as a cause for GSA.
 

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Root causes: no ferts and no CO2. You brought the plant growth to a screeching halt. That's what caused the algae.

Next time, skip the fish food. Keep CO2 + ferts the same. Reduce light intensity a bit.
 

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Discussion Starter · #5 ·
Root causes: no ferts and no CO2. You brought the plant growth to a screeching halt. That's what caused the algae.

Next time, skip the fish food. Keep CO2 + ferts the same. Reduce light intensity a bit.
I was on vacation for 10 days. That makes sense though with the fish food why there would be a bloom thanks!
 

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lol i love CO2: [censored][censored][censored][censored]ting two hours before lights come on and [censored][censored][censored][censored] off 1 hour after they turn off

Anyways, from your parameters it looks like you had a little ammonia and nitrite spike while you were gone that triggered a GSA outbreak. Should clear up soon. Your KH is very high for a planted aquarium as well, what's going on there?
 

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Discussion Starter · #7 ·
lol i love CO2: [censored][censored][censored][censored]ting two hours before lights come on and [censored][censored][censored][censored] off 1 hour after they turn off

Anyways, from your parameters it looks like you had a little ammonia and nitrite spike while you were gone that triggered a GSA outbreak. Should clear up soon. Your KH is very high for a planted aquarium as well, what's going on there?
Using well water, which is notoriously hard in these parts. I am thinking about getting an RODI unit to cut into my tap water.
 
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