That was a small view of the amount of bubble algae in my tank. It is completely gone after using Vibrant -- I bought it Sept 2nd, 2017 and it took about 2 months to fully clear out. I ended up dosing every 3-4 days -- so it was a fairly heavy dose.
The negative impact was that I believe it, in combo with the GFO I was running, stripped nutrients pretty heavily. I saw an impact on some LPS. I lost a goniopora I had going for 3 years, a Favia and an Acan also started losing tissue.
However it completely wiped the bubble algae out -- it has been about 4 months since I used up the bottle and I haven't seen anything return.
Did you just dose in accordance with directions?