Vertex for me. But just as with ich prevention and cure, if you don't do it right, lots of problems. However, if done right bio pellets are wonderful.

I inherited a very mature tank (10 years old) a few years ago, that had high nitrates (up to 100 ppm), high phosphates, and full of algae, detritus, and cyano. With the help of bio pellets and MB7 (a must IMO), it's been running clean for some time now with zero nitrates, near zero phosphates, and no algae or cyano problems. So the bio pellets definitely work, no question.... And my SPS is growing nicely.

LOL, progress and advance techniques do not provide expected results when used incorrectly --- BAN THEM FROM THE MARKET!!!!

LOL,... and like Kien in Calgary, I will happily accept bio pellets from anyone in the Vancouver area, and promise to dispose of them properly...

well I started using Vertex from Denny and Grizz telling me to use it. MY Nitrates are ZERO I like it just have to work on the Hair algae problem. with a RSM 250 its not right to have a tang in there need a Sea Hare.

Vertex