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Message: <blockquote data-quote="lexinverts" data-source="post: 6851492" data-attributes="member: 49463">Hello, All:I've been on Reef2Reef since 2015, and I'm finally getting around to posting a tank thread.Here's my previous tank. This was a Red Sea Max 250 that I had running for 4 years.<img src="https://i.imgur.com/uV1Z1lW.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />We remodeled our house, which meant that we had to live in the garage and bedrooms for 6 weeks! That's a lot of microwaved meals...The happy end of this trying experience came when my wife said that the old tank would look too small in reference to our now over-sized contemporary kitchen decor.Woo-hoo! A few weeks later and I was unwrapping this bad boy.<img src="https://i.imgur.com/yDk6HXE.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />Here are my system specs:Aquarium- Red Sea Reefer XXL 750 with white cabinet and Red Sea center support brace.- Set up in March 2019- I've also got two 60 gallon coral frag systems, a Reefer 170 seahorse system, a 40 gallon fish quarantine system, and 4 freshwater shrimp breeding systems.Flow- Simplicity 2100 return pump- Two Ecotech Mp40W powerheads with two Ecotech battery backupsFiltration- Stock Red Sea filter socks- Red Sea RSK-900 Skimmer- A variety of live rock in the sump. Some coming from other reef tanks and some coming directly from TongaLighting- Three ReeFi Duo Extreme LED. Love these lights! See Dana Riddle's thread on them <a href="https://www.reef2reef.com/threads/interesting-new-led-light.640820/" target="_blank">here</a>.- Santa Monica Filtration GEM5 LED for chaeto in the sumpHeating- Two 300W Jaeger, controlled by GHL Profilux 4Controller- GHL Profilux 4- Two GHL Doser 2.1 units- GHL KH Director- MindStream monitor (with MS now being up for sale, the current disk is past due to be replaced, so I am not relying on it :mad<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />.Dosing- ATI Essentials Pro<a href="https://aquabiomics.com" target="_blank">AquaBiomics Analysis</a>- I think this will someday become as common as ICP tests. See the first three pages of analysis of my tank microbiome below. My data tell me that my tank has relatively high microbial diversity, which does not surprise me because I started it out with live rock from my previous system and some branching live rock from Tonga. The high diversity score also makes sense because I <a href="https://www.reef2reef.com/ams/establishing-a-healthy-microbiome-in-a-new-aquarium-using-live-rock.742/" target="_blank">have not had any nuisance algae problems</a> at all during the establishment of this system. The tank struggles appear to be nutrient related:<img src="https://i.imgur.com/2ltKOW7.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="https://i.imgur.com/XEognSY.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="https://i.imgur.com/Km7tv3i.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />Fish- Three Pyramid Butterflies- Blonde Naso Tang- Katherine's Fairy Wrasse- Niger Triggerfish(Others waiting in quarantine)PNWMAS- Much of what I know about reefkeeping I learned from the Pacific Northwest Marine Aquarium Society in Portland OR. If you live in the Pacific Northwest, it's worth checking the club out!<img src="https://i.imgur.com/dwmMNZU.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />I believe the tank is currently struggling because I had to run it fallow (fishless) for 4 months. I had to run it fallow for so long because I had two separate marine velvet outbreaks that wiped out my fish collection. During the fallow period, the nutrients in the tank dropped to undetectable. I have been dosing Sodium Nitrate and Trisodium Phosphate to bring them up, however, I have found that dosing pure nutrients like this, at least in this system, is not as effective as providing them to the corals in the form of fish poop. Anyway, I lost most of my SPS frags during the fallow period. I just reintroduced fish, so I am hopeful the SPS will start to thrive again! I just added some test frags, so we will see...</blockquote>

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