Ravenswing
Member
Hello!
I have come from high to low last spring and everything has gone pretty well but every now and then I find myself thinking some strange things like...
1) I have used almost an year root tabs wich are made for houseplants. They contain ammonium. There hasn`t been any problems with them thou sometimes my cories dig then up (they love them!!) but now Im bit worried since my KH is pretty low, 2 (also tap), and I raised it a bit so pH is now 7,6 or more (JBL test ends 7,6). pH has been earlier 7,2-7,4. I use EC. But...It is said that ammonium will turn to ammonia rapidly so is there possibility for that now pH is that high? On the other hand Iv been thinking no to touch KH/pH at all since they have been stable for months, so why bother since plants seems to do pretty fine...? It just sounds so low and as we used to have pressurized Co2s Im used to keep it higher (4-5) but nowadays we dont have pressurized systems anymore so this is new situation for me.
2) A bit confused... In a thread wich I red totally tired (>cant find it now) one night Gec states that (over)dosing NO3 will increase the demand of CO2. Maybe/propably I was too tired to get the point but havent we been taught that according to EI you can keep excess of nutrients even in tanks without Co2 and there is only one nutrient (not counting light now) that can be used to restrict the demand of Co2 and that nutrient is PO4. I dont use gasCo2 but EC so Im interested in if the slight excess of NO3 Im keeping on really causes increase demand of Co2 wich is, I guess, on the edge right now in my tanks. Im not using PO4 (tried without any visible signs of nothing) so IF excess of NO3 will increase the demand of CO2, maybe I have to limit NO3 too (kept it stable 5mg/l)?
I have come from high to low last spring and everything has gone pretty well but every now and then I find myself thinking some strange things like...
1) I have used almost an year root tabs wich are made for houseplants. They contain ammonium. There hasn`t been any problems with them thou sometimes my cories dig then up (they love them!!) but now Im bit worried since my KH is pretty low, 2 (also tap), and I raised it a bit so pH is now 7,6 or more (JBL test ends 7,6). pH has been earlier 7,2-7,4. I use EC. But...It is said that ammonium will turn to ammonia rapidly so is there possibility for that now pH is that high? On the other hand Iv been thinking no to touch KH/pH at all since they have been stable for months, so why bother since plants seems to do pretty fine...? It just sounds so low and as we used to have pressurized Co2s Im used to keep it higher (4-5) but nowadays we dont have pressurized systems anymore so this is new situation for me.
2) A bit confused... In a thread wich I red totally tired (>cant find it now) one night Gec states that (over)dosing NO3 will increase the demand of CO2. Maybe/propably I was too tired to get the point but havent we been taught that according to EI you can keep excess of nutrients even in tanks without Co2 and there is only one nutrient (not counting light now) that can be used to restrict the demand of Co2 and that nutrient is PO4. I dont use gasCo2 but EC so Im interested in if the slight excess of NO3 Im keeping on really causes increase demand of Co2 wich is, I guess, on the edge right now in my tanks. Im not using PO4 (tried without any visible signs of nothing) so IF excess of NO3 will increase the demand of CO2, maybe I have to limit NO3 too (kept it stable 5mg/l)?