I have a 305 and 405 on my 150g. Now mine are on a fw
tank, so ymmv on this... I have ceramic bio-rings in all 3/4 of the baskets and 4 course sponges as well. I do not run carbon (though I think it is used much more in sw
). Since you've got a sw
tank with live rock (im assuming), you really wont need any ceramic media since you have plenty of bacteria colonizing on the rock. You also have to worry about the bio-rings building up crud and causing nitrate issues.
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