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following the recent Susi Barber/Roger Miller thread, I noticed one thing in
particular,,, water change volume.
I currently shoot for about a 40% change weekly on my 55 display.
I dose CO2 via 5lb cylinder (1-2bbls/sec) and add approx 1/4 tsp KSO4 (?)
twice weekly. No other nutrients are added. I still cont to have high
Nitrate levels and spot algae out the "ying yang", as well as periodic
growht of hair and fuzz algaes.
I dose the K to keep the PO4 down. It is very high in tap.
My quest: would it be adviseable to decrease weekly water change volume when
I am not reconstituting my water as much as many ppl are? Or, is it better
to continue large volume changes?
It seems that a lower volume change would allow PO4 levels to rise due to
feeding. (altho I really don't feed much at all) - like to keep the lil
buggers hungry, so I know where they are at all times ;-P
I don't test much, but my Nitrates generally range around 15-20ppm. I am
getting in a new Eheim CO2 diffuser and upgrading my lighting to PC this
month, this should help the plants to use more of the nitrogen and hopefully
alleviate the spot algae problems!
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