I posted this in another thread but here's mine;
When I went to PJ Pets to purchase my 5 gallon tank, I was talking to the Fish/Reptile Manager about bettas and I hadn't heard of this forum yet so I was asking him questions about water changes and such. He told me not to worry too much about water changes, that he just lets LOTS of the water evaporate until theres like 25% left and then he fills it back up. I was absolutely SHOCKED. He's the MANAGER of the fish department and he's giving this advice to people? Also telling them that bettas get stressed if they are in tanks that are too big.
If you always do what you've always done, then you'll always get what you've always got.