Never...most of my sand is ~25 yrs old...from a 300g that I set up in 1991 when I moved into my present home...I think all my tanks before that had crushed coral/dolomite
Never...most of my sand is ~25 yrs old...from a 300g that I set up in 1991 when I moved into my present home...I think all my tanks before that had crushed coral/dolomite
Never...most of my sand is ~25 yrs old...from a 300g that I set up in 1991 when I moved into my present home...I think all my tanks before that had crushed coral/dolomite
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