the instructions say the sponges need to be replaced every two months but they seem to be very rinsable, can i just keep rinsing them forever or do they need to be replaced? i already bought a bunch of ac sponges of different sizes for use in my marineland filters because its a cheap alternative for me and i dont use carbon in my tanks
same question with the bio max media it comes with
same question with the bio max media it comes with
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