hi... I'm new to this board. just need some advice on my axolotl. At the moment I have two, a black one and a white one, and I've only had them for two weeks. While the white one is fine the black one is floating up the top but it sometimes tips to the side and didn't move for a long time (even when I poked it a few times). it is also struggling to stay at the bottom, and makes a huge effort to stay there. While I know floating is normal, is tipping to the side normal? I thought it was dead at first, until he started moving again.