Alrighty, I've been lurking for some time now, and finally feel the need to post.
I managed to get my hands on on an Aquarium Pharmaceuticals GH and KH test kit. My suspicion is that my city has soft water that they up the pH on (high sevens to low eights on my pH tests).
The KH test seemed to go okay. After four drops the water color changed from blue to yellow indicating approximately 71.6 ppm KH (right?).
The GH did not go as well. The instructions that I have say that after the first drop the water should turn orange. Mine turned yellow. The color endpoint is supposed to be green. After *50* drops the water in the test tube was only more yellow. No hint of green existed. Since I doubt that my water hardness is 900 ppm GH
, I am thinking that my test is old.
If it matters or you are curious my tank is 10 gallons, topsoil/fine gravel substrate, 3 watts/gallon at 6500k compact flourescent (too high?), 1-amazon sword, 1-red rubin sword, 1-bunch anacharis, several dozen hitchhiking snails. No fishies yet as I am only 20 days into a fishless cycle.
It has been a while (15+ years) since I've had a tropical aquarium and doing all this water testing is quite new to me.
Thanks in advance,