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  • Christopher Marks

    Congratulations to Yardboy for being selected for our September Reef Profile! His 10 gallon nano reef is a stunning example of a regional biotope. Below he has written a profile of his aquarium's growth over the past year, and shares his experiences with diving in the St. Andrews Jetties of Florida. Check it out and share your comments and questions in Yardboy's featured reef profile thread.

    fulltankshot.jpg

    Tank Specs

    Tank: Standard 10 gallon tempered glass tank, 20" x 10" x 12".
    Lighting: 2 x 32W PC with individual reflectors in a custom canopy. One 10,000K and one 50/50 bulb.
    Filtration: 2 x 150gpm Regent hang-on-back filters with carbon cartridge.
    Circulation: Hydor 150gpm powerhead.
    System Age: Started July 2007

    History

    In the beginning was the biotope. A desire to observe easily what is close at hand in the ocean led to the first marine aquariums. After years of travel to Florida for diving, I moved here and had the opportunity to frequently visit a popular local dive site, the St. Andrew jetties. Observing the constant procession of marine life, the flourishing and fading of populations through the year, stimulated my primal desire to want to watch and wonder at the life there for longer than a single breath or tank of air.

     

    The Jetties Nano was developed in "The Reef Lab," a sunroom added onto my house and an attempt to contain my addiction to reef keeping. When offering advice, I prefer to give my personal experience rather than opinions, so with the Jetties Nano I wanted to see just how simple a tank setup could be.

     

    Since the jetties consist of large limestone boulders forming a barrier to block the movement of sand into the channel, I discretely placed pieces of base rock among the boulders, obtained in South Florida, to develop as liverock for the tank. It's probably borderline illegal but I asked the ranger and they gave me a "whatever" look. Three years later, (yes, I lost it for awhile) it had developed some nice corraline color and a few polyps of cup coral.

    Aquascaping has always been a challenge for me. Many tanks have inspired me, but the idea I used for this tank came from the landscaping of small spaces. Curving a path around a visual barrier causes the eye to follow it until the view disappears, giving the illusion of greater space, and adds to the mystery of what lies beyond.

     

    For the livestock, I'd have preferred to use what is commonly seen at the jetties, and did collect brittle stars, corkscrew and flower anemones, and hermit crabs, but the prolific Beau Gregory damsels, Molly Miller blennies and Doctorfish tangs proved too aggressive for this small tank. The gorgonians and hard corals present are either azooxanthellate or illegal to collect. I used "Fishes of the Northern Gulf of Mexico," "A Field Guide to Gorgonians of the Gulf of Mexico," and Veron's "Corals of the World" to identify species that might be found here, at least in the summer. In the end, though I did collect specimens from the jetties, the tank more likely represents an artificial reef found offshore about 50 miles!

    Maintenance

    Instant Ocean salt with RO/DI water for weekly 15% water changes and daily topoff. Then a 15% monthly water change from the jetties. Daily flake food feeding. Every other day dosing of homemade phyto (chloronannopsis) and rotifer (Marine L Strain). While everything in the tank eats flake food, I do a water change with jetties water on the high tide monthly, hoping for something interesting to take hold and praying nothing nasty is introduced!

    Clean Up Crew

    Black long spined urchin
    Lettuce nudibranch
    Sea cucumber - yellow
    Hermit crabs – blue legged and local red legged
    Nassarious snails – 2 of a local species
    Nerite snails – for the glass

    Fish

    Rusty gobies - mating pair
    Masked gobies – no indications of mating

    Invertebrates

    Spotted Anemone Shrimp – pair.
    Peppermint shrimp – pair.
    Flower Anemone
    Corkscrew anemone
    Rock anemone
    Large brown anemone - probably aiptasia species, food for peppermints!
    Oculina sp. – hard coral
    Phyllangia – cup coral

    Gorgonians

    Purple Knobby Sea Rod
    Orange Spiny Sea Rod
    Purple Sea Plume
    Yellow Sea Whip
    Purple Sea Blade

    Experiences

    When the tank was initially set up, I had major algae problems, likely due to the nutrients from the Bay saturating the rocks. Water changes and a good cleanup crew finally got it under control after a several months. Note to new reefers: With greater export than import of nutrients and a cleanup crew tailored to your problem, algae blooms can be beat! I've never heard anyone say "I wish I hadn't done a water change!"

    I casually mention using DIY phyto and rotifers. Be aware that if you decide to try and "grow your own," a lot of research is in order. They can be much more complicated to do successfully than a reef tank! If it weren't so expensive, I'd buy all my food!

     

    At first I wanted to see how simple and cheap a setup I could make to simulate the local environment. When it proved to be successful, I began wishing I'd done a few things differently:

     

    1. Bigger Tank - While a 10 gallon is cheap, a 20L isn't much more. The glass of the 10 scratches too easily and space is limited.
    2. A Sump – Doesn't add much to the mechanical complexity but gives more opportunities for nutrient control.
    3. Lighting – A 10 gallon is really limited in lighting options. Small metal halides, T5's, and maybe LED's will be the lights of the future.

    Acknowledgments

    I'd like to thank everyone at Nano-Reef.com who share and help others to be successful in this wonderful hobby, and my wonderful wife, who if she didn't give her support, I'd not be able to pursue this hobby (besides, she has sharper eyes to find specimens during our dives!). If I were to give anyone advice, it would be to read and study before you start a tank. Starting with no knowledge and pretending to be innovative is a recipe for failure. Why throw away a bunch of money and kill living animals in the process? Ask questions to further your understanding. Don't get caught up in the fad of exclusive corals. There are many beautiful, inexpensive, easy to grow corals available.

     

    @yardboy

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    A very nice tank and I found your desription very mature and inspiring. Congratulations for your humble approach and the willingness to learn from nature and observation.

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    Do it!

    The tank has been surprisngly easy to maintain. As you probably notice, it doesn't even have a skimmer, or sump. Weekly water changes, with a slight vacuuming of the sandbed seems to do the trick. One thing I haven't mentioned is the massive population of spaghetti worms that concentrates detritus around their burrows, making it easy to siphon up.

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    ever thoguht about adding in to the display things such as oar grass or manatee grass? to make for a more "natural" look? how are those masked gobies working out for ya anyways? anything prey on them from the florida areas that we might add into our tanks?

     

    ie. would a blackcap/ chalk swallow them up? etc etc? and congrats btw.

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    Being such small fish, I'm sure there are plenty of things that prey upon them, but nothing in the jetties nano has bothered them. At first, the rusty gobies would pop them if they got too close, but I think that was just territorial disputes. They seem to get along fine now, though they tend not to wander up into the caves and ledges where the rusties hang out. There are still two rogue crabs in the tank, and they'd probably eat them if they got the chance. I've lost several decorative crabs to them, I'm sure. Those b-stards are so sharp, they can tell when you are looking at them and will sidle away, turn your head and they will ease back out. Too crazy. I need to get some sharp pointed spear to stab them with, since they are so fast.

    Turtle grass beds occur about a mile away, in very large areas of the bay system that the jetties channel admits into, but none occur anywhere around the jetties that I've seen. I am experimenting with turtle and manatee grass in another tank (which has ended up being a kind of "leftover" tank of things I've tried in the jetties tank but that got too big for it. The Beau gregory that got too aggressive and big is in there (It's a 30 gallon tank) but I've found that the grasses grow very slowly for me at least. I've unfortunately just about run out of room in the jetties tank also, with there being only a small area in the middle with sand on it, which is where the grasses would need to go. I was recently in the Philippines and saw grass beds with brain and elegance corals in them. Now there's the kind of biotope I'd really like to try!

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    Congrats on your tank there. Great job.

     

    I have some questions if you don't mind answering.

    1. What make you decide to have this Mesican Gulf theme?

    2. You said that you chagne additon 15% monthly? How would you do that when you already making 15% water change weekly?

    3. How much and often do you feed your tank?

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    Congrats on your tank there. Great job.

     

    I have some questions if you don't mind answering.

    1. What make you decide to have this Mesican Gulf theme?

    2. You said that you chagne additon 15% monthly? How would you do that when you already making 15% water change weekly?

    3. How much and often do you feed your tank?

    Sorry for the delay in answering, I've been out of town.

    I started this tank because I live about 5 miles from the jetties that I was trying to emulate. I dive there at least once a week, and often more.

    I do a 10-15% water change weekly using artificial (Instant Ocean) sea water. Once a month I use water from the ocean (natural sea water) for a 15% water change to give potential extra plankton for the tan inhabitants to feed on, and also with the chance that some other creature will settle and begin to grow in the tank. No luck yet on that front.

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    Yes, I wait for a good high tide and catch the water on the way in, that way it has the least chance of being contaminated with pollution from the bay.

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    Congratz!

     

    I was just up in PC over labor day .We didn't get to do any boating/snorkeling because of the dang hurricane though :( I was going to explore the jetties while I was there. Oh well. Maybe next time.

     

    Your tank is looking awesome.

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    Too bad on the timing Dude. It was nice afterwards when the silt settled. I'm going this weekend to see if anything is left. The temp. is dropping and critters are starting to migrate away. I'll keep snorkeling this year until I just can't stand it so I can see what type population progressions there are over the winter.

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