Quote:
Originally posted by magdelan
Thanks Gary!! I did a 50% on Sunday (11/4/07 yesterday). I am going to get more water tomorrow and do another 50% tomorrow night.
OK... If I preform two 50% water changes, does this mean that I have change out 75% of the water?
Can I then do another 50% water change two days later??
Also, does Nori add to the bio load?
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I would keep the water changes to 25% or less unless you have a serious crises which you may. The only concern I have about 50%to 90% changes are the salt mixes. They contain metals and ather impruiteis higher than natural seawater. These generally precipitate. I don't know how long it takes and a heavy dose at one time could be harmful.
Nori adds to the bio load just like any other food. Probably lower in phosphate and nitrate than other stuff. If you use frozen foods try thawing them with tap water and draining off the packing water. The the packing water is full of nutrient . The soak in tap water may also help kill any vibrio bacteria which may be in the food.
Nori would be one of the last things I would stop using unless my fish stopped eating it.
Good Luck and keep us posted.