what carbon for filtering?
Hi
I hope I am not asking a stupid question, but here goes.
I make my own filter with activated carbon and cotton wool which works really well. When googling for a new bag of carbon, loads of aquatic carbons came up. Is it safe to use this?
I hope I am not asking a stupid question, but here goes.
I make my own filter with activated carbon and cotton wool which works really well. When googling for a new bag of carbon, loads of aquatic carbons came up. Is it safe to use this?