I bought some sponges from Home depot, labeled "hydrophilic sponge", to cover my filter intake in a breeder tank. They have a smell that reminds me of new shoes. Anyone know if these are treated with something I should be concerned about?
Says it is made of cellulose and synthetic fibers and contains no cleaners. I would say its safe but would probably wash it a few times in some dechlorinated water or some left over water from cleaning a tank.
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