Originally Posted by 150EH
I disagree with PO4 is not the cause of your algae, I've had a bad BBA outbreak that I though a high phosphate level caused. Take the course you like, but I would keep using the Phosgaurd it will lower the PO4 levels (change it every 4 days) and they do build up in the substrate (vacuum substrate until they are lowered). Another problem is the HOB filter and the way you are getting CO2 into your tank, your losing it as fast as your putting it in or before it even reaches the tank. You need minimal surface movement when injecting CO2 and the HOB filters are not helping. What is your Kh so you can figure out how much CO2 is in the water. Don't use any buffers to control your Ph let the CO2 do that. Last but not least get those lights on a timer and being you already have some problems set them for 8 to 10 hours a day and no more.
Otay, where's my algae then, been ummm 15 years................if PO4 causes algae, why don't I have it?
Been adding it at 1ppm + for many years, decades now.......where's my algae?
How do other folks dose PO4 and get no algae?
This is clearly not the case. Anyone can test this.
You did ellude to the real cause, CO2, see, they use what? DIY CO2.
Is that a stable supply of CO2? It can be but requires upkeep.
Adding 20-30ppm during the daylight peroid will stop BBA from growing.
I have a 100 % track record with BBA in person.
I can also induce BBA by maintaining high NO3, PO4, Traces etc and lowing the CO2 or turning it off.
I cannot induce BBA by increasing the PO4 levels to 2ppm when the CO2 is 20-30ppm and the other nutrients are in good ranges.
Why is that?
If you want to test whether something is true, that's relatively easy, but you need to have control of other confounding factors like the CO2, highly unlikely with DIY CO2.
I don't have it and can cure any tank I've seen and dealt with, I add PO4, never remove it.
You can try your path with PO4 remover all day long and still never get rid of it, many have in the past, but you still will have to explain why I do not have BBA with high excess PO4.
We tried 0.0ppm of PO4, stilll had BBA, We tried 0ppm NO3, still had BBA.
My observations do not agree with what you say, nor have with our entire plant club of close to 40 people and close to 15 years, many AGA contest winners, plus natural lakes studies out of Florida for the last 25 years, rather they directly argue the opposite contention.
Where's my algae?
Try BBA= poor CO2.
You'll find close to 95-100% of all cases related to poor CO2.
BBA is a good indicator that the CO2 levels could be improved in any tank I see. I don't even need to know the water parameters.
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