I use to have several tanks years ago. starting up again after 20+ yrs. I believe i have a 75 gallon tank, its 48/18/20. what i would love info on is what type of fish to get for my type of water, so i don't have to worry about hard, soft, or ph levels and the such. does anyone have any suggestions... I'm taking a sample of the water to the local pet store, but they didn't even know they could test for water hardness. thank you, lisa

Once you have established your water parameters we can discuss fish... for now , we have no idea what they are so recommending anything is impossible.