can you have 2 diatom blooms?

my tank is 7 months old now,params check fine,started the tank with tap water but switched to ro/di for top offs and water changes several months ago.No doubt i have the tank a little overstocked,but i change 20% water 1 to 2 times a week and run my skimmer full bore.But it seems as i'm getting some cyano under control,i am now having a 2nd diatom bloom.Is this normal for a fairly new tank??Will it hurt anything as i now have some softy corals and some inverts in there?

 

You'll have blooms everytime you introduce new silicates..i.e. plastics like powerheads, pvc, etc. They're usually smaller and don't last as long.

 

Man that was fast! thanks for the info,is there anything i can do to speed up there there eviction notice?? They wont hurt anything in the tank will they?I have a little cheato and a couple other small macros,but it's acumulating on those as well,i've been blowing them off with a squeeze bulb the last couple days.

 

They'll starve out when the silicates are used up. If they get to heavy on corals, rocks etc. Just blow em off with a turkey baster. But since it's your second bloom it shouldn't get anywhere near that bad.

 

they are actually dead phytoplankton so they will naturally accumulate on your macro algae.
they do have a lot of nutrients for corals and some fish when they are alive so they are not bad or anything

 

Thats a relief!! thanks guys,i was getting worried.

 

What exactly are diatomes? Are they the brown stuff down in your sand?