The guppy I got 2 days ago is acting weird. He every once in a while falls to his side and sinks to the bottom of the tank. He was already in quarantine so that isn't an issue, but I put him in a betta cup with a little bit of tank water to hep him get oxygen, as he is having issues breathing, and is breathing from the surface. Every once in a while he stops swimming, and i turn the cup a bit to 'jump start' him. Wha can I do? This is the second fish I might lose in a week! I lost ome guppy from the same lfs yesterday, and apollo might be sick. Gr!