algie

Hi everyone, I have been raising 2 Horseshoe crabs for the last 5 years (1 is 3 yrs. old, 1 is 5 yrs. old) They eat well, have a big tank and are usually great but the 5 yr. old has developed Green Algal disease. His shell is turning green and splotchy, he's not eating much and moving slow. Has...

Now that I have my tank "fully" stocked with fish I'm starting to get the Uglies. All kinds of algae growing like crazy (seriously, at least three different types of "algae"). If this was freshwater I know what to do - water changes! Reef? Not so sure. Do I wait it out? Do I add Vibrant? I have...