Alright guys, so I’m trying to help a customer who comes to my store with a tank cloudiness problem. Her tank has been cloudy for almost 3 months now (white haze cloudy). At the start I told her it was just a bacterial bloom for a new tank and it would go away in 2 days, it did not. A week passed and we did a water change (0 Ammonia, 0 Nitrites, 20 Nitrates, Ph 7.6). She’s got guppies, they’re active, they eat, she doesn’t over feed, she even does a fast day. Tank is still cloudy. Water change, still cloudy, test water still cloudy. Add in intake sponge, still cloudy, replace the cartridge with sponge, still cloudy, use water purifier, still cloudy, use filter floss still cloudy, water changes, still cloudy, let it sit for 2 weeks, still cloudy. Every time we change water it’s cloudy, we test the water it’s perfectly fine. The fish are active and healthy, everything is fine except it’s white cloudy. My only thought now is maybe there’s somehow excess calcium in the water? Maybe her tap has ridiculous amounts of calcium? Gonna test hardness tomorrow but does anyone have thoughts otherwise? It’s a 10 gallon with guppies (I think 4 or 5), intake sponge on filter, sponge in filter with floss, water changes weekly, it’s a healthy tank as far as I can tell. What am I missing?
BTW part of my confusion is I have the same tap, my water is crystal clear, my water even tests the same as hers. I feel like I’m missing something but every time I’m researching it always goes back to bacterial bloom but that doesn’t seem to make sense.