hey, im looking after my friends axolotl (boris) for two weeks while shes on holiday. the problem is im pretty new to the 'world of axolotl' and i dont really know whats normal behaviour and whats not. today is the third day ive had him and also the most active he has been. my main concerns are that he seems to be floating towards the top of the tank and also towards the filter. I'd like to know if its okay to turn the filter off and that he would still be okay. also i was woken up by him this morning to what sounded like him jumping out of the water and falling back in, is this normal? my friend never mentioned any of these things to me and i dont know weather to be worried or not! thanks alot! x