Hi JasonC,
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Originally Posted by JasonC
Hi! This is my 1st time in this forum. I have read all about the algae problems from most of you, but I found that no one really concern about the 'Potassium' and I had just overcome the algae problems. When our tank contain too much nutrients, means the algae will growing fast from beyond our control. The 2 ways that I am using now are, add more Potassium into the water & put more Yamato shrimp (but currently I have only 7 Yamato shrimps, still looking for more. Estimated 100litres tank need 40~50 of it to do the jobs.)
I think JBL & Tetra fertilizer has just a little Potassium inside, but the plant really needs more than that for photosynthesis.
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Forgive me if I am not reading your post properly, but you said you had just overcome the algae problems by adding more potassium. May I know what kind of algae problems?. How much bioload (fish,plants) and how much and how often do you feed your fish?. With enough bioload, (Nitrogen and Phosphorous are produced from fish waste, remnants of fish food and dead leaves) the only macro nutrients lacking is Potassium. But some tank don't have enough bioload so not enough Nitrogen and Phosphorous for plants. JBL, Tetra etc maybe not enough Potassium (maybe enough for average tank) , but we dose that for trace elements (micro nutrients esp Fe ect). But dosing extra Potassium, causes no harms either IMO. But most of algae problems, IMHO, is CO2 related. BGA is another story (not algae actually, cynobacteria...)
And one more thing, after reading the articles in the links you provided, I am still a bit confused, is it the same article read by Dom?.
Come to think of it, ADA do suggest to dose Brighty K (main Potassium source) daily. ADA tank also keeps NO3 level very low too (< 1mg/l, read from TFH magazine). Maybe something to think about.
Regards