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[APD] Re: Water parameters changed


Thanks for your help!  Just checked and the kh of my
tap water and it is the same - it's been 0 as long as
I can remember.  The kh in my tank is only 7-8 because
I have the coral in the filter.

Is there any test that you would recommend?  I've been
using Aquarium Pharmaceuticals, which up until this
last check, read a steady 5-10ppm on nitrates, now it
doesn't read all of a sudden.

I'll try the KH and CaCl2/MgSO4 for my KH and GH.  I'm
going to aim my KH for 6 so that I can get my ph to
6.8 and have a co2 of 29 (from the chart I have).  I
guess I am going to have to add the baking soda every
week after the 50% weekly fill.  Maybe that's what
happened -- I increased the size of my weekly water
change the coral I added to the tank is not dissolving
fast enough to keep up with the fact that the tap
water has 0 KH.

As for GH, any level you would recommend?

Thanks for your help...I am trying to follow all your
advice that I read to make my plants happy instead of
worrying about algae.  I started with the co2 and now
I am working on the nutrients!



"Your tap is still the same? 7-8?
Tap will change through the season in many areas."

2) Nitrates normal 5-10ppm, now fail to read on my
test (even at 0ppm, my test turns the water yellow --
water now stays perfectly clear).
3) Co2 injection on both, but now my ph has gone from
6.9 down to 6.2 (which is because the kh is lower), so
co2 levels have also changed."

Has it or just the KH?
Check and see.

"65 gallon, dosing each element every other day:
10ml TMG
1/2 tsp stump remover for nitrate
1ml Fleet enema for phosphate
1 capful Seachem potassium
50% water change weekly
10 gallon, same thing, dosing each element every other
day, as close as I can get to 1/6th of above amounts.

I understand why my ph is down.  What I don't
understand is which of these elements would make my kh
drop and cause my nitrate test to fail to work.  And
how do I solve this?"

The KH is your tap water has changed, that's cause the
pH drop.
NO3, perhaps the test it bad. I've never found NO3
test kits to be useful
unless they were high quality. 

"I should note that since the kh of my tap water is
always 0, I have added bags of crushed coral to each
of my filters to boost the kh up and I have not
removed or changed either of them as until now, the kh
remains quite stable.  Without them, the kh of my
tanks is also 0.  My water parameters have changed
since a) I changed my dosing schedule and amounts
dosed, which I did after b) a one week break in co2
injection for repairs.  This all happened over a 2
week period. "

Try using baking soda for KH and CaCl2/MgSO4 for GH.
  These dissolve fast.
This will give you control over the KH/GH and allow
you to cover your bases

"Any ideas would be gratefully appreciated!

Tom Barr

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