Thanks for bumping this thread guys... while this system was upgraded a while back most of the corals I still have. Do a search with my name and "65 gallon" and some threads will come up showing some of my other systems. My wife and I have been in our new house for almost three months now and I have my 400+ gallon system up and running and looking good (180 display tank). Sanjay Joshi is driving down this weekend and he'll be bringing me some Penn State frags on top of hitting some local stores, so I'll soon update here at swf.com with photos and discussion of the new system being that I'm cleaning all of the coralline in preparation for the weekend
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jsullivan, to answer your questions, I did not use a skimmer on this system, although it would have helped. In reality it's amazing what live rock with good water flow and macroalgae can achieve in dealing with wastes. With such a large refugium I never detected nitrates, even though I did have a high bioload. If I were to do the system today I would leave substrate out of the refugium and probably put a small amount of crushed coral in the display and keep it clean as I have done with my large system. When you mention "minerals" there really isn't much to worry about in a nano... I dosed kalk and B-ionic because of the high uptakes I had, but in reality in such a small system where you are able to do large water changes conveniently many times additives do more harm than good.
The hobby (especially those into sps) continues to evolve and current filtration philosophies basically lean towards vigorous waste removal through various means... On my new system I use "filter socks", a large refugium, a Euroreef CS 12-2 recirculating skimmer (a beast!), and water changes... all while leaving the frag tank and refugium without substrate to trap detritus, and the display with a small amount of crushed coral for show that I gravel wash regularly... DSBs, and even shallow sand beds, are going the way of wet/dry filters... they were nice advancements at the time but the hobby has moved past them. Wet/drys are great in breaking down ammonia and nitrite aerobically, but leave nitrate virtually untouched to build up. DSBs answered that by anaerobically breaking them down, but their long term stability is tough and sometimes impossible to maintain without too much hassle. With good water flow, quality live rock, and better skimmers nitrates are now seldom a problem for experienced reefers so DSBs are uneccesary... and anything that traps detritus becomes a burden eventually... including DSBs... people talk about maintaining the health of the detritivores and such, but why? Other simpler means accomplish this these days...
For those who haven't seen the current Tank of the Month in Reefkeeping Magazine it contains sps under fluorescents using the same basic principles I used in this nano (lights very close to the water line with a good reflector). Also check out the September '04 issue where my 65 gallon was featured with many corals that started in this very nano...
In relationship news... Jerry, my onyx Solomon Islands percula has been paired up for about a year and has since become the female in the raelationship... more importantly... my wife and I are expecting our first baby (a boy!) in August right before my 28th birthday! I'll update in this thread when I start a new thread on the new system... but for now a shot of my 65 in its heyday last year before the move...(edit: for now it seems I cannot post any photos due to a technical problem at swf... will try soon)...