AverageWhiteBloke
Member
I could be wrong at the moment I would have to test more but if plants are co2 limited and extracting carbon via carbonates in the water, could they remove enough carbonates to lower PH through the lighting period?
The reason I ask is my tank was running KH limited, only just realised it. I've added some crushed coral (I Think) to raise KH, its a non co2 tank btw. I also have a fair amount of leaf litter which will reduce PH slightly or quite significantly I hazard a guess in no KH water! However, yesterday having adding crushed coral the PH seems to have stabilised this morning. Tests again after lighting period show the ph has actually lowered since this morning.
Question is could the plants have sucked the carbonates out during growth to lower the PH? Everything seems to be doing the exact opposite of what I was expecting.
The reason I ask is my tank was running KH limited, only just realised it. I've added some crushed coral (I Think) to raise KH, its a non co2 tank btw. I also have a fair amount of leaf litter which will reduce PH slightly or quite significantly I hazard a guess in no KH water! However, yesterday having adding crushed coral the PH seems to have stabilised this morning. Tests again after lighting period show the ph has actually lowered since this morning.
Question is could the plants have sucked the carbonates out during growth to lower the PH? Everything seems to be doing the exact opposite of what I was expecting.