I'm feeling a little responsible here but...
Doing right with the water changes. Also suggest if you going to be adding anything, get a good test kit so you can measure yourself. That way you can monitor changes as you slowly dose so you don't go over. Again slowly in this hobby, reason why one acclimatizes new stock is so that they're not shocked by sudden changes in parameters.
Wonder if the test kit was Hagen? Their test has the number of drops x 10 to get hardness in mg/l (PPM). I got sold the big kit from a LFS that I never got around to throw out, so was able to try hardness with it.
Though expired, just tested my water and got 11 drops so 110 ppm (within the ideal range from the Hagen pamphlet included with the kit, 105-125mg/l (ocean being 125mg/l)). Interesting thing is this afternoon tested the tank with Salifert (and yes heard of the bad batches) but got 9.6KH (~190ppm). Just with difference between the two, and I'm leaning that the Salifert is more correct, if I would start dosing based on the Hagen I would have driven my alk beyond ideal.
Guess the other thing to say if the tank was looking okay before, use that as an indicator if you should be adding anything.
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