01-29-2013, 08:47 AM
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First, I was just listening to an interview of Dr. Tim Hovanec by the Baily Bros (Tom and Nevin) and Dr. Tim said after the proper dosage of 'One and Only', you could add up to 1" per gallon of fish and it would be fine.
On the conservative side, you might move half the stock, wait a few days or a week and move the rest. Monitor the water params and the fish and do a water change as/if necessary.
Second, we tend to overlook the root cause of (algae) problems like this. Most problem algae's develop when there's excess nutrients in the water and too much light. Were you doing weekly water changes of sufficient quantities? How about tank maintenance to reduce decaying organic compounds? Does your tank have living plants to use nutrients and purify the water? What type and how long are your lights on? Is there excess room light (tank near a window)?
Just some thoughts. Sometimes when you're not looking a tank just gets away from you and some serious measures are needed. Sortof like spring cleaning.