[Strong odor of "pool water" in the home after adding crushed coral]

Hello everyone. I recently converted my 125 and 75 to fancy gold fish tanks. I've been keeping fish for years and I know what aquarium water should smell like when the ecosystem is healthy. But over the last few weeks my entire house has begun to smell like pool or ocean water. It's very strong and almost overwhelming. The tanks are cleaned regularly and all of the water parameters are exactly where they need to be. The only thing I can attribute the sudden change towards are bags of crushed coral that I added to each tank. Could this be the culprit?

[Added crushed coral to tanks... How long for it to stabilize PH/KH?]

Great question! Jennifer Lynx also suggests 1/2 cup per 20 gallons to raise and buffer PH which is far less than AC. 🤷‍♂️