Providing liquidity comes with a certain risk because of the thing called impermanent loss. It's quite tricky to explain this. In a nutshell, if you have two tokens in a liquidity pool, you will always own 50% of value in token A and 50% of value in token B. If in your case Zing goes down in price, you will own much more Zing tokens and less hive tokens. In my opinion, it's always important to chose a pool with tokens that evolve in a similar manner or that you don't care ending up with either or. For example if you provide liquidity in the pool hive:btc, you probably don't mind ending up with more hive or more btc. I would only provide liquidity for such pools.