Rue:
It is not uncommon to zero phosphates and plenty of algae: The phosphates are immediately eaten by the algae. I would add a small GFO bag (PhosBan or similar) for a few weeks. That helped a lot in my tank!
Fishes that are strictly algae eaters are not a good solution, I believe. Once the algae is gone, they starve to death. Or even worse, they do not like the algae specy you have...
conorwynne:
Rue is the one with the algae problem... I finally got rid of most of it. Et enfin, oui je suis Francais.