Quote:
Originally Posted by
bekko 
Don, the traditional Tosakin crock has nothing but fish and water. Ideally, there is enough light to have green water. In the water exchange, about 10% is held back as an inoculum to be sure the water turns green again. Most of you are not big fans of green water, but it really does wonders for goldfish health, growth and color. In addition, the green water sucks up ammonia as fast as it is produced and the nitrogen waste is discarded as algae cells in the water exchange.
Like many, my tosakin bowl is in the house and does not get enough light to make green water. The roof is translucent but usually covered in leaves and there is a large tree above that.
-ste veh opk