Phosguard versus ChemiPure Elite

I recently moved and since the move have had a problem with green hair algae growing (mostly on the backglass). I think the problem is due to increased sunlight (which I am working on blocking). The LFS here insists that Phosguard is a must for virtually any reef tank. I haven't had much luck with Phosguard but ChemiPure Elite has worked for me in the past. So, I am thinking of switching back (I have only had to use it sporadically in the past- I know it is essentially a band aid). Anyway, I would like to get some feedback regarding successes or unsuccesses with Phosguard. By the way, my labs are good.
Thanks,
Jim

75 gallon Reef tank 70 lbs of live rock,54.5 pounds of base rock, 60 lbs live sand, 1 Clarks clown fish, 1 yellow watchman goby with pistol shrimp,1yellowtail damselfish,1 Flame Angelfish, 1 "Pacific" Wrasse, 2 Skunk Cleaner Shrimp, 2 Emerald crabs, 5 drawf hermit crabs, and 4 Nasser snails, 5 Bumble Bee snails, 4 Turbo snails, Sebae anemone, Kenya Tree forest, 1 Yellow Polyp, 1 Mushroom rock, 1 White Spot Star Polyp, 2 button polyp rocks, 1 Pineapple Coral, 1 Bubble Coral, 1 Xenia Coral, 1 Frogspawn coral, 1 plate coral, 1 Orange Montipora, orange button polyps, purple button polyps

 

They work differently. Phosguard won't do a great job for you unless you follow the instructions to the "T". I.e. Test phosphorus, put in Phosguard, Remove after 3 days (I think) and replace. Wait 3 days, test again, etc.

It will remove phosphorus very quickly....much quicker than Chemipure Elite. However, it is DEFINITELY more work. Chemipure Elite is pretty much drop it in and replace in a month.

 

I use PhosGuard exclusively now. I have tried several different brands to include BRS, and ChemiPure. Nothing has worked in my tank as well as PhosGuard. This is just my tank though.... every tank is different.