DreamWeaver
Welcome to TR, glad you found us. Both Phurst and Seahorsedreams are giving you good advice but not explaining the Y.
While the
wet/dry is considered "old school", it is still a great filter for converting
Ammonia and
Nitrite, to less harmful
Nitrate. But, that is where it's efficiency stops. That is OK in a fish only set up. However, in a reef set up that's exactly where you get into trouble. The
wet/dry does not convert
Nitrate and it builds to toxic levels quickly and water changes will not take out enough
Nitrate to relieve the problem. Because fish only aquariums are "old school" (fish are not as susceptible to
Nitrate) and reef aquariums are "new school" the "old" won't do in a reef aquarium. The animals we keep in a reef, in addition to a few fish, are much less tolerant to
Nitrate and will die off with levels much lower than fish can adapt to. You need to provide a means of your filtration system to convert the
Nitrate to Nitrogen gas which escapes to the atmosphere harmlessly.
We do this by using
LR,
DSBs, Protein
Skimmers, Ozone and probably other devices eluding my feeble mind at the moment.
Sad as it is for me to say and for you to hear, but oh so true and the sooner you understand this the better. "The worst place to go for accurate and consistent information concerning the set-up and maintenance of saltwater aquariums is your
LFS" Now, certainly there are some good ones but, sadly to say, they are far and few between. This may seem more than a little odd to you since the
LFS is the newbies first and most likely source of information.
You are fortunate to have found the best of sources for information, you found TR.
Dick