Larry Lampert wrote:
The old Krib Archives are a goldmine of information
for those interested in doing the research. We can all
thank Erik Olson for that!
Loud "yes, thank you" from this chair, too!
Central CA, considered fairly arid, but not desert--we end up living off snowmelt in mountain reservoirs.I am not sure what part of the country you are in but for reference purposes.
My water comes from 3This is helpful, because I'm seeing something I may be doing wrong.
reservoirs here in Dallas so it to can vary. I measure
my GH with a Lamotte kit. It comes out to around 5.5
Gh, to be exact when I do the calcium test and the
Magnesium remainder it comes out to 96-98ppm total GH
with 90-94ppm CA and around 4-6 MG. Yes, my CA:MG
ratios are way out of whack too. I use two teaspoons
of Mg2SO4 for each 30 gallons of water I change. This
gets me to about 138ppm total of which the Mg is now
I could never get Rotala to grow, either before or after CO2.. It acted as if it was in a low light tank buried down in the dark at 20" deep, and rotted out on me. Hadn't tried Ammania, as I assumed as a high-light plant it would have similar issues.It is not exact since my teaspoons are not always measured exactly level. I have not seen any reproducible benefits from going any higher or lower with MG ratios. IME if I keep the ratio at 1:3 or 4 it is all the same. I have not gone any higher than 1:2 as Jeff discussed so I don't know what would happen but I have used straight tap water and my plants did indeed have deficiency symptoms.
The last piece of advice is to not trust test kits implicitly. The reagents go bad over time in the best of kits, and many pet store grade kits don't seem to work at all. Indicator plants ie. Rotala, Ammania, and many others will let you know if you have a nutrient deficiency every time as long as you know what to look for.
Thank you again--I will.More good info on this on the Krib and APD archives too!
Reading your posts it sounds like you are on the right
track. Let us know how the tank progresses.
Regards, Larry Lampert Dallas,TX
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