Ok so apparently, my landlord told me that I can't keep my tank and the reason behind that (I came to know from him) is that his home insurance doesn't have flood coverage. He had a flood damage in 2006 on the top floor possibly by a pipe and after than his insurance doesn't cover it any more. Can it be like that? Is it like he is skipping the premium and hence he is not getting the coverage?
Anyway, I am thinking of trying to negotiate with him with rental insurance. But I am getting mixed reviews about it. Some say that rental can cover flood damage "to the house" due to aquarium but won't cover aquarium components itself while others say that's total BS and rental insurance can only cover damage to the person's belongings and water damage is home insurance's headache.
Now I am very very VERY unfamiliar with insurance and stuffs and I am afraid of the thing called "fine prints"

So if someone can help me out with this before I make the move, I can have stronger points than just relying on random claims.