I got this from my LFS for $5.00 they were selling it for $25.00 but they think it will not make it because of the white spots all over it. I think they had it mislabled. They called this a fingure sponge, I don't think thats what it is. I know they did have it out of the water for a few seconds. If it is a sponge and they had it out of the water will it die for sure and should I just remove it from my tank?