I have a 55gal that I had cichlids in for 2 years. I have removed them and they have been out of the tank for a week and a half. I did not clean it after removing them or turn the filter off for that week and a half. Is it still cycled? If I were to add fish do I still need to abide by the 3-4 rule since I had 8 cichlids in it? Also does it recycle when I add those fish back? Sorry for so many questions at once.