At a loss I have checked my Alkalinity 3 times with similar results using the RED SEA Foundation Pro Test Kit and my Alkalinity is at 19.2 dKH , Magnesium is at 960 ppm, Calcium is at 370 ppm , Phosphate is 0.50 ppm, PH shows 7.9 at 76.8 degrees, ammonia = 0 , nitrite = 0, nitrate - 10 ppm salinity = 1.024 or 34% @ 76.8 degrees ...I have to ocellaris clowns , 1 yellow tail damsel , and1 tomini tang . I also have 5 or 6 small groups of zoas, 3 mushrooms, 1 bubble tipped anemone, 1 favia, 1 pulsiing zenia, all the corals and the anemone except for the zoas were put in today and appear to be doing fine! the fish are about 3 and 4 months old and the zoas are 3 months old if memory serves me right ! It is a 65 gallon tank with about 30 lbs of white dead rock, and 22 lbs of coralline fake rock, and then 28 lbs of real live rock with multiple corals and mushrooms and some kind of tube worms on it! I am running a HOB 1.5 skimmer and a Aqueon Model 400 Cannister with the Black Plastic balls in the bottom , then ceramic ring media next then pond guru's brown colored media next (cant remember the name) then 3 different layers of filter foam and floss , then into 2 overflow boxes with carbon filtration into tank ! I dosed about 25 ml of soda bicarb that i made by baking some baking soda and mixing with rodi water about 2 months ago, and only dosed it once then i figured out i probably shouldn't do that without a test kit and went and got one ! oops. Also have a 300 watt and a 500 watt heater and two dual head power heads for extra flow! i have a hanna checker on the way to confirm if the RED SEA test kit is accurate or not ! in the mean time is there a way to lower my alkalinity without killing my livestock, or is 19.2 even a realistic number? Any help will be much appreciated ! I already lost a rock flower anemone 2 weeks ago and I hope im not fixing to loss more livestock! Please Help!