IMO, there are many things happening in your tank that we cant measure, and require time to stabilize through. It's redundant to the other posts, but patience is the only key sometimes. Even though your tank has 'cycled' according to the basic tests, at 5 weeks, your water is far from being mature enough to handle so much livestock. Live rock is not the answer to filtration. It's just a part of it. Live rock is a type of bioload in itself and the water must adjust to it. Anenomes would be another expample. It's generally not recommended that anenomes be kept in 'young' tanks regardless of how many zeros you have on your test kits. I've noticed that the slower you go in the beginning, the more 'bulletproof' your tank will become in taking any chemical spikes. I think at week #5, I was adding my first back of rock which was 20-30 pounds worth. Just my 2 cents...
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George
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