Planning a coral propagation system

Prop system update

Prop system update

The new sump is working well for the prop system. I found my Mag 9.5 pump (950 GPH) and hooked it up to the system and was a bit disappointed with the performance. It was just way too much flow so I downsized it to a Mag 7 (700 GPH) which seems to be more manageable but is still on the high side. The problem is that it is difficult to balance the flow to the tanks without really cranking down on the ball valves and also the high GPH seems to generate micro bubbles. I will likely go down one more notch to a Mag 5 (500 GPH) and then have some additional flow in the tanks (airlifts?).
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Refugium
I had some leftover aragonite sand that I added to the refugium. This gave me a nice deep sand bed as a refugium base. I also have some cheato macro algae and live rock rubble that I can add to the refugium. The light is an 18 watt PC with a 7100K lamp. The 13ââ"šÂ¬Ã‚ width fits the tank nicely.

It took me a couple of days to get the system filled up with saltwater. My 100GPD RO/DI seems to be running a bit slower these days and likely needs a new membrane since it is about 4 years old. I have been getting a reading of 6-7 ppm on my TDS meter even after changing out my DI resins. I am going to change the sediment filter & carbon blocks and if this does not do the trick then I am going to get a new membrane.

Skimmer?
I am still ââ"šÂ¬Ã…"œon the fenceââ"šÂ¬Ã‚ when it comes to a protein skimmer. After reading some others experiences with soft coral propagation I am considering running the system without a skimmer and using the refugium and carbon for my primary nutrient export and filtration. I expect to get slightly faster growth by keeping some of the nutrients in the system that may get depleted by a skimmer. Check out Farmertodd and his thoughts on skimmers -
http://reefs.org/library/farmertodd/
 
Overflows

Overflows

I went ahead and added an overflow box to each tank. I had enough acrylic left over from the sump project to build small 4ââ"šÂ¬Ã‚x4ââ"šÂ¬Ã‚ overflows for the three tanks. This has allowed me to increase the water level in each tank and adds about 6 gallons of volume to the system. It also dramatically improves the surface skimming and keeps the surface scum to a minimum. Thanks to sharkdude for the suggestion. ;)
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It took all week to install the overflows as I have already filled up the system with saltwater. The process was: drain the tank to a Rubbermaid container (love these things), wipe the glass clean and dry, apply silicone to the acrylic edges, attach to the tank with clamps, let cure for 48 hours, remove the clamps, refill the tank and then repeat.

I have some loc-line parts that should arrive some time next week to modify the return on each tank for some improved flow. The flow in each tank is actually quite nice with just the single Mag5 running the whole system. The Y adapters and nozzles may drop the flow a bit after I add them but then it might be just rightââ"šÂ¬Ã‚¦we shall see?
 
<a href=showthread.php?s=&postid=7440034#post7440034 target=_blank>Originally posted</a> by sharkdude
cool! looks like it works well for you.

yeah, I added mine pre-fill so not quite as much trouble as you went through.

so where's the pics of the live stuff already!?

check out the various threads here:
http://www.reefs.org/phpBB2/viewforum.php?f=80&sid=5650783b1901269d66bd3f5c3d83a863

your documentation and approach to your project reminds me of several of the threads I read over there.

Thanks again for your suggestions. I hope to have some "live stuff" in the form of growing corals in the tanks in the coming weeks. I do have a couple of bits of live rock some live sand and some cheato in the refugium but nothing picture worthy. :bum:

I really want to share as many ideas as possible concerning coral propagation. This is a fairly small system but could potentially produce a good bit and hopefully be efficient at the same time. I am always open to suggestions.
 
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Airlifts

Airlifts

Here is my new ââ"šÂ¬Ã…"œtoyââ"šÂ¬Ã‚ I am experimenting with.
49055prop-12.jpg


This is a Super Luft Pump SL-38 piston style air pump. I am going to try using airlifts in each prop tank for additional water circulation using this pump for the supply. The specs on this pump rate it as 38L/hr (liters per hour) at 18 watts. This translates to somewhere around 650-700 GPH of water movement in a Ã"šÃ‚¾Ã¢â"šÂ¬Ã‚ airlift that is about 10ââ"šÂ¬Ã‚ tall! Note that the Mag 7 uses about 70 watts to generate 700 GPH of flow!

The pump comes with a nifty four output adjustable valve. These valves will allow me to adjust the flow to each tank on the fly.

The airlifts will be a bit more efficient than adding three power heads (energy savings) and would give me about 175 - 350 GPH of additional flow in each of the prop tanks for about 6 watts per tank. Having one or two lifts in each tank along with individual heaters would allow me to temporarily isolate each tank from the system for quarantine or treatment if I needed to. I may also run the air pump on a battery back up system for an additional fail-safe. Worst case in a power outage ââ"šÂ¬Ã¢â‚¬Å“ I would still have water movement in each tank.

After a trip to the big orange box hardware store to get some Ã"šÃ‚¾Ã¢â"šÂ¬Ã‚ PVC and a few parts this is what I came up with. It is a combination frag rack/airlift frame. I took it out of the tank and set it on the eggcrate material to take a picture. Many thanks to dendronepthya for sharing his airlift frame design. :D
49055prop-14.jpg


The back of the frame has a couple of Tââ"šÂ¬Ã¢"žÂ¢s with short lengths of PVC on the bottom for support and a couple of elbows to create the cross frame. The front corners of the rack are the airlifts with elbows on the top and bottom. The elbow on the top has a small 3/16ââ"šÂ¬Ã‚ diameter hole for the airline tubing to run to the bottom of the lift.
49055prop-15.jpg


This was the best solution I could come up with for this size tank . There is, unfortunately, very little reference material on airlift design. I might try building another one of these racks with Ã"šÃ‚½Ã¢â"šÂ¬Ã‚ PVC to try and save on real estate but the Ã"šÃ‚¾Ã¢â"šÂ¬Ã‚ seems to work well for the airlifts. The flow from these things is quite impressive and I am really happy with the performance of these lifts (so far). Here is a shot with the circulation pump turned off and only the airlifts running.
49055prop-16.jpg


I have two lifts in this center tank as it will require the most flow. The air outputs for each lift is cut down to about half of the total. I could crank them up and get even more flow but things get pretty messy with that much air and saltwater blowing around. One thing I did initially was that I made the airlifts a bit too tall. Having just the very tip of each of the elbows sticking out of the water allows the water to still flow nicely but cuts down on the amount of spray produced.

My best guess on the GPH flow that they are producing is roughly about 175-200 GPH from each airlift. I calculated that the air pump that I am using is capable of about 700 GPH and if I distribute the total flow evenly among four airlifts this will give me about 175 GPH on each.

The breakdown of water flow:
Each tank is about 24 gallons. The return pump from the sump (Mag 5) supplies about 140 GPH to each tank with another 175 GPH from a single airlift. This gives a minimum of 315 GPH (tanks 1&3) and a max of about 490 GPH flow (tank 2). This should work for well for the corals I have selected.
 
Lighting

Lighting

I finally got some more time to work on my prop system today. I spent the morning building a basic wood canopy. This one is only 5” tall and the top is hinged so I can open it and it will stay upright. I am thinking about throwing a coat of black paint and a layer of varnish on the wood so it will last a bit.
49055prop-17.jpg


I installed a Sunlight Supply 2x24 watt T5 retrofit with one Giesemann Midday 6000K lamp and one Giesemann Pure Actinic lamp. Being able to open the hood and have it stay upright will give me fairly easy access to the frags.
49055prop-18.jpg


I would probably use two of the 6000K lamps but it would likely be too bright for the softies I am planning on. This setup will be over tank 2 of the system and should provide plenty of growing power for the Sarcophyton and Sinularia. The actinic lamp should help the corals keep their colors and will make any pictures I take a bit more vibrant.
49055prop-19.jpg


This light setup is quite bright! My initial observation is that the T5 lights will work quite well. From what I have read and the data I have seen on the T5’s they should provide the spectrum/intensity for growth and should also be efficient. I feel that this efficiency is a key component of successful coral propagation. This is the first time I have used T5 being an old salt metal halide and VHO user.

I am going to test this one throughout the week and then hopefully I can build the other two canopies for the other tanks next weekend. I am thinking of using a single 24w T5HO lamp on each of the other tanks â€"œ probably just a single Aquablue or maybe one of the new UV Lighting (URI) Actinic White lamps?
 
<a href=showthread.php?s=&postid=7495154#post7495154 target=_blank>Originally posted</a> by bond007069
Is your Super Luft Air pump noisy?

Nice setup

Thank you for the compliment. :D

The Super Luft is not as noisy as I expected it to be but is louder than I like. It is louder than a regular diaphragm style air pump and I have actually started turning it off when I am working in the coral room.
 
Broodstock

Broodstock

Well it has been just over a month since I first put saltwater in the prop system. I tested all of the parameters and since everything is looking good I decided to add some corals and start farming. :beachbum:

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I have a nice mixed Zoanthid colony(Green-purple skirt, Pink-purple skirt, Purple-purple skirt), Green Toadstool, Blue Ricordea, Green Stripe Mushroom and a Fiji Yellow Leather. This is good portion of the corals that were on my initial list so I am happy with this start.

These are all nice healthy mother corals and will be fun to frag. I am going to let them acclimate to the change in lighting for several weeks and then I will start creating divisions. :cool:
 
I'm lovin the thread and everything looks real nice. I'm not a nubie but I have never heard of air lifts. Can you post some sites or threads that helped you learn about them? Thanks.
 
<a href=showthread.php?s=&postid=7599237#post7599237 target=_blank>Originally posted</a> by Lenny C
I'm lovin the thread and everything looks real nice. I'm not a nubie but I have never heard of air lifts. Can you post some sites or threads that helped you learn about them? Thanks.

Thank you for the compliments. :D

There is not much information on using air lifts in a propagation application. Check this thread for a good summary:
http://www.reefcentral.com/forums/showthread.php?s=&threadid=866815

RobinsonFam1 - The tank stands are working quite well. Thank you again for your help! :cool:
 
<a href=showthread.php?s=&postid=7625875#post7625875 target=_blank>Originally posted</a> by Shawnts106
This is fun!

Why no acros?
Why no Montis?

I do love the Scleractinians! My nano reef is full of them. :cool:

I also am a big fan of the more colorful soft corals. Check one of my earlier posts for an explanation of my choice of corals.

http://reefcentral.com/forums/showthread.php?s=&postid=7263248#post7263248

Rekonn - You are right. I chose fast growers and low energy corals for this system.
 
Very nice system, especially like the sump setup and the airlifts.

How has it been working out anymore good stuff.
 
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