Evil has a new name.......DINOFLAGELLATES

[Archie]

Drip kalkwasser every night and upgrade to a better skimmer.
The kalk will help by phosphate precipitation and export through skimming. It should also help with your low calcium levels and will boost your coralline algae growth which will in turn outcompete the nuisance algae. Keep maintaining your alk with the Kent product. Sometimes you have to give it a major dosage boost before you can keep the levels maintained for any lasting duration.

I've seen a few used Turboflotors kicking about on various Canadian boards for as low as $150. They're actually a pretty decent skimmer once you add a small air pump to push more air into its venturi. They're a good choice before the jump up into the next tax bracket. If you want one that will last you a lifetime and help you grow into a bigger tank, look at some of the Canadian made becket head units like the Canreef or Saltwater Connection models. Well worth the extra $$$

IMHO, dinoflagelletes are often over look by most clean up crew critters and herbivorous fish.

HTH, Archie