We all work for money. I'm not rich either. During the day, I'm a teacher, which amounts to very little money. I would love to keep a huge shark tank, but I don't because I don't have money for a 10,000 gallon tank. That's no excuse.I've read that they are quite sensitive to water, that's why I change it once every 2 weeks. Maybe it's more than that so I'll try and look up some sort of water cleanser or something.
I don't have the money to spend like that and I have to work hard for whatever money I get, so it's not really that easy to say and to call my tank a joke. I will upgrade my tank soon.