Well not too sure on calc and alk, but nitrates are either 10 or 20. I can't tell on the salifert test kit. Some of the tentacles look like they are rubberbanded, like it's getting pinched off. I recently moved a powerhead because it's tentacle were getting pretty close to it and I didn't want to come home to a purée anemone. I've been playing with the flow last night and this morning to get it to hit the anemone more now because it wasn't for a couple of days.