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what to do when substrate runs out of nutrients after 6 month - 1 year. i believe that is how long they last.so do we take out the substrate or add capcule into the substrate.
one more thing. i was thinking about getting seachem black sand type planted substrate. i wanted to know if the black color will fade away or stay black even after the nutrients are gone and how long would it take for the nutrients to be completly gone.
thank you..this question make me feel like newbie
one more thing. i was thinking about getting seachem black sand type planted substrate. i wanted to know if the black color will fade away or stay black even after the nutrients are gone and how long would it take for the nutrients to be completly gone.
thank you..this question make me feel like newbie