need opinions- changing hqi bulbs
 

What do you guys recommend?

I am using the aquaconnect 14000k 150 w hqi
but i am having brown and some cyano algae problems and am going to change them. they are only 9months old..
tested all levels
calcium 420
alk-9
no ammonia or nitrates
removed corals as well because of algae taking them over
also have tryed the xm - to yellow
and giesmanns-
-what to stick to 14k
so i am thinking of ushio or Phoenix.
any thoughts?????

What ballast are you running?

coralife aquapro light hqi ballast

I doubt the bulbs are your issue but the phoenix and the AC are just about identical.