Hey everyone...Just wondering if anyone can help me. I went to the petstore and got some fish that the petstore people told me would live together ok. I got 4 Platy's (2 solid black and 2 orange and black) and a silver tipped shark. I noticed that the shark wasn't eating as he should. And this morning he was dead. I have found online that they are naturally a brackish water species but can adapt to freshwater. In the petstore they said he was freshwater. I want to attempt *later when i can afford a bigger tank for him to grow into* to get another one and try him in braskish water. Is there anything I can do to make it eat right? Did he just not like my food??? Sad and missing him...He was very active and fun to watch!