So, I have an old foot long pleco, Levi, that I have had since 2014 (he was probably around 10 years old or so when I got him). He is in a 75 gallon tank by himself. I have always had really hard water, but I recently got a water softener. I also have RO water in the kitchen. I am not sure what type of water to use now for his tank. Also, I got a new faucet, so I can’t use my python anymore to clean the bottom. I need help! Can someone advise me on my options?????