KH was too low and calcium too high

Read this to solve this problem...

http://www.advancedaquarist.com/issues/nov2002/chem.htm


Hair algae persists. What should i do? Add more part B of C-Balance?

Hair Algae will due to either...
High Nitrates
High Phosphates
Old or Incorrect Colour Freq Lamps

Try using a macro algae {seaweed} to out grow the hair algae...
Rowaphos to absorb the phosphates and check the age of your lamps...

Rob