375+ Projected Build - would apprecaite some input

02tts

New member
Hi all, so I'm looking to put together a build somewhere between 375-500G, this would be the DT size. The size will be determined by what the wife allows me to spend on the tank :) - I plan to order the tank tomorrow so any input on the design below would be most appreciated.

The design is a high-level depiction, i.e. the sump layout will not be exactly as depicted but was used to show the components in it. Initially this will be a fish only tank with live rock but 'may' opt for some corals later on which is why I'm including a refugium from the start - if you feel a refugium is not necessary and I should go with a wet/dry style by all means let me know, but I will say the last wet/dry setup I had many years ago caused a big nitrate problem for me, coupled with the overall noise from the wet/dry and it was an unpleasant experience. Anyway, the setup will be a BA setup using the (3) 1.5" stand pipes with an internal coast to coast overflow - I show it as an external overflow because that was the initial thought but after thinking it over and from a furniture design perspective I'm going to do an internal coast to coast.

Although not depicted, there will be some powerheads for water movement unless there is a better way of doing it via a closed loop setup.

Would love to hear your thoughts, especially regarding:

1. wet/dry vs. berlin style sump
2. refugium or no refugium
3. one pump or two pumps for the return and what you feel the GPH should be
4. I will not be doing filter socks, instead I will be using the old school filter media instead but welcome any thoughts on this
5. thoughts on choice of skimmer - in speaking to Aquamaxx they recommended the CO-5 and CO-6 like another member here suggested but they also recommended the Q5, which is less expensive so I'm happier about that but wondering performance wise which will perform better?
6. I may do a nitrate reactor, not sure - any thoughts on this, are these needed/still used now a days? The tank will house some predator fish but nothing like sharks or anything big like that
7. although not included on here, I will either do a 10G or 20G reservoir for auto top offs since I will not have access to a water line where this is going
8. any thoughts on doing a series of close-loops off the bottom of the tank for circulation vs. using powerheads...any dangers on integrity given the weight of water volume if doing floor bulkheads...
9. been reading up on DSB's and I'm going to stick with a 1" sand bed to avoid any nitrate and other issues. I know some swear by a 4-6" bed but from my experience the ill effects are just too dangerous if not well maintained/cared for.

It's been 10 years for me so I'm sure I'm leaving something out. I don't plan on piping in a UV, too much unnecessary heat and I have no plans on putting in a chiller, with a UV it will almost be a guarantee I will have to.

I truly appreciate any input!

<a href="http://s856.photobucket.com/user/02tts/media/375%20Gallon.jpg.html" target="_blank"><img src="http://i856.photobucket.com/albums/ab123/02tts/375%20Gallon.jpg" border="0" alt=" photo 375 Gallon.jpg"/></a>
 
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Also, any recommendations for sump builders?

I see some using Elite Aquatics and Trigger Sys - I have reached to both and never heard back so not sure if they are even in business or what to expect of them if they are as they don't seem to communicate and have no number to call.

Any other recommendations?
 
Large system so I would do two pumps for redundancy.

Love the closed loop idea!

First chamber - Definitely would not do wet/dry system. Looks like you want to do that in the drain chamber. I'd make it modular rock rubble so you can have a safe haven for fauna to reproduce and old school filter media.

Second chamber - I'd only do a refugium if you plan to design it properly for nutrient export. For instance, UAS, modular DSB, LR, maybe make a rolling chaeto chamber. I wouldn't just disregard a DSB all together and would rather make a modular DSB (modular so you can remove it and clean it out every 6-12 months). A waterfall ATS or UAS is a must IMO. Honestly, IMO a large and well designed ATS/UAS is going to do everything you want and need. Refugium will be just for looks.

Third chamber - Skimmer, can't go wrong with Aquamaxx. Lifereef would be a huge contender here too.

Fourth chamber - Reactors carbon/gfo. Could make this a rolling chaeto chamber. No to the nitrate reactor. I'd carbon dose or do biopellets. Carbon dosing is my preference. Biopellets really should have a recirculating reactor and recirculating skimmer.

Hope this helps!
 
How are bio pellet reactors for nitrate control? Been reading up on them and seem to be pretty impressive results. If I didn't do a refugium would the bio pellet reactor and skimmer be enough?
 
375+ Projected Build - would apprecaite some input

Biopellets work. They are essentially carbon dosing but it takes time to get them going and they can be temperamental without a recirculating skimmer and recirculating reactor. I wouldn't do them without recirculating equipment. I had them on my 75g they eliminated nitrates but because I didn't have recirculating equipment I had some issues with cyano. I think a skimmer and biopellets could handle it all. You'd still want carbon and gfo. I like carbon dosing because it's so easy and doesn't take as much monitoring, maintenance and if you dose the big three it's easy to dose carbon at the same time.


But to be honest a properly designed ATS and skimmer is essentially all you need. You wouldn't even need carbon or gfo. MAYBE...carbon for water clarity. Nowadays the results people are getting from ATS lit with LEDs is overwhelming. I'm implementing ATS/UAS on all my builds from here out. All the other stuff is unnecessary and more for fun and experimenting. Your system is large so get the essentials and have fun it will save you tons of time, work and headaches.
 
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