The only problem is the 70w Viper is £160, whereas the 150w Haqos with double the output is £150! Plus, the Haqos looks 10 times better.
I'll have a rethink...as I already have 33w (3.3-3.5WPG CF), will my 3 leathers that haven't been looking too good recently (changing colour, not extending polyps etc.), and my pink plate coral which has started losing its colour, be brought back to life a few days after I put the new light on?!
Or, may the better light still not help them? Water parameters are fine, I feed DT's Phyto, and the corals aren't getting stung etc.