| Re: which fish is the hardiest? I started cycling a predator tank and put in a large rabbit fish, a grouper and a 4 small damsels to help the cycling. The ammonia spiked way high and all the fish got really sick. The damsels all died. I moved the rabbit fish and the grouper to my quarantine tank and the rabbitfish hung on for a couple more days and then died. The grouper, which looked almost dead, made an amazing come back and looks as good as new. |