how do I get more good algae

[Rikko]

I agree with Brad - invest in a good Ca and Alk test kit. I've tried a couple and was happy with Salifert for Ca (plus popular opinion helped that). I'm happy with my Hagen alk ("KH") test kit - it's quicker than the Salifert one.

To actually boost your calcium without adding new equipment, I'd suggest using a calcium chloride additive over calcium hydroxide. It's available in fish stores as Kent Turbo Calcium and other brands.. There are also generics, if you can trust their composition. You might have better luck in Edmonton finding Dowflake - it's commonly sold as salt-free ice melter. I wasn't able to turn up much in Vancouver... Seems we only need salt once every couple of years. You can also find calcium chloride in pool supply stores, but check with the manufacturer about the exact composition.