See? Told you they're hardy.

Just watch her weight carefully and ensure she's eating well. They can handle a lot of issues with water, but if they lose weight for any reason, they get weak and then it's very hard to bounce back. Macy stopped eating when I switched to a new sand and lost a ton of weight -- her ribs were showing as were her hip bones by her tail/ventral fins and her disc was becoming see-through on the edges and thin like tissue paper. I offered every kind of food under the sun, but she wouldn't take it. Even though she started eating well again on whole shrimp, it was too late and she couldn't make it back. She just layed down on the bottom to rest one afternoon and never woke up.

I really wish all the best for your little girl, I'm really pulling for her.