hey I just changed my aquascape in my 20 cube for the last time I could decide and no I'm settled the tank is 11 months old I have changed the aquascape 4 times and I finally like how it looks I have gotten some cyano and diatoms for changing the rock I kept some of the last rock I had to keep some of the biodiversity etc I'm wondering should be concerned about anything what should I expect and what can I do I have vacuumed out some of the cyano and it seems to struggle coming back the diatoms are from changing the rock it not like adding completely new sand right how long do you think it will take to go away thanks in advance. BTW I do weekly 20% WC and feed every other day