Hi everyone, I haven't posted before but love the site. Started up a new tank it has finished being cycled for about a month now. The levels are all good the fish healthy (been fully stocked for about a month now) water clear, but the beige gravel is turning quite dark, no debris on the bottom, is it just algae it's sort of brownish green. There is nothing to vacuum on the bottom. Do I have to wash the gravel or just leave it.
Thanks for any help.
Alison
Thanks for any help.
Alison