Your water needs to be saturated with Oxygen. A skimmer is a generator for oxygen in the water.
Without a skimmer, you need at least very strong watermovement i.m.o
Eric Borneman did an analysis of skimmate on another forum, and as he has said we don't really know what exactly skimmate pulls out, or if it is harmful/helpful or just a waste of money here is a link to the article http://forum.marinedepot.com/Topic52254-9-1.aspx Hope this helps
That does not make any sense. You think that changing 100% of week will not remove all the food. You would be like if anything servives with water changes like that.
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