I did my first (and only) water change on 17th. The 19th was the first day of testing. Tested at 420ppm. Tested Saturday. Down to 400, Sunday 360(?). Dosed with 3tsp of Kent Ca
(am), brought it back up to 380 evening. The next day it was back down to 360 so I dosed 6 tsp. That brought be up to 400, but by the next day it was back down again to 360. Dosed 9 tsp over the next day. That brought me back up to 420. Added another 6 and am now up to 450. I am testing the Ca
daily since it was changing so fast.
The original water was also IO so no better/worse than what the LFS
is doing for me. I need to find a source of better salt.
Since there are no fish in there yet (filter media's been in the system for 2w now so we're ready to move it to a QT
tank) and I'm still trying to finish my cycle (ammo 0, trites 0, trates 20) I'm not doing regular water changes, per se. Will probably do one this weekend though.