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New 260 gallon DAS corner tank need help

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Post by BBAILEY_TYLER Thu 13 Jun 2013, 4:55 pm

Allright everyone i just got a used 260 gallon DAS corner tank and need some ideas and help.
The tank is a corner tank and has the built in filtration?sump against the back left corner of the tank. there are 2 large square sections then a skinny section then a third large square section. in the first section there is a massive protein skimmer. the rest of the sections are empty and it came with 2 return pumps. any ideas on what to put where and what to put in the sections for the DAS system to work right? i have not messed with these DAS systems much the one i had on the 55 gallon i completely redesigned and used it diffrently. so any help would be great, thanks. will attack pics as soon as possible.

gallon - New 260 gallon DAS corner tank need help 260_ga10


this is what it looks like set up before i bought it.

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Post by Xscalver Thu 13 Jun 2013, 7:51 pm

nice
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Post by DonnieP Thu 13 Jun 2013, 11:46 pm

Man that is one nice looking tank good luck with it!
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Post by matt_longview Fri 14 Jun 2013, 9:55 am

What's your filtering plan (or what equipment do you plan on using)?  Does one section seem built for a refugium with an area to be lit?  How does the water flow into it and through it (overflows into section 2, bubble trap to section 3 ect)?

That's a beautiful tank!  Can't wait to see what you'll be able to do with it! :-)
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Post by BBAILEY_TYLER Fri 14 Jun 2013, 1:16 pm

gallon - New 260 gallon DAS corner tank need help 260_ga11

Ok this is the filter system in the tank.
yes there is avalability to light it but limited and as you can see there is a skimmer in the far left section then a small section then a return pump section then a large empty section the two small divided sections that have some filter bag in them then another return pump.

i have only $200 dollars invested as of right now so i am open to all options i just dont know how the flow on this filter works? the over flow goes all the way across the front but i would think that it directs the water to the protein skimmer first then to the right it is just hard to see how the water flows and i cant find any diagram online?
here are closer pics of the in side from left to right.

gallon - New 260 gallon DAS corner tank need help 260_fi10

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Post by BBAILEY_TYLER Fri 14 Jun 2013, 1:17 pm

any ideas would be great, thanks.

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Post by grawlfang Fri 14 Jun 2013, 3:06 pm

OMG what a deal!!! you got lucky on that one, and it's a beautiful tank
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Post by DonnieP Fri 14 Jun 2013, 7:54 pm

I can tell you what I would do. I would rip out all the old school DAS filtration and drill two bulkheads, one on each end in the bottom and build two overflows and add as big a sump as I could get to fit underneath, set it up right. The old DAS tanks had problems with gas exchange. The tank is a beauty but it needs to be modernized. With it being an older tank the bottom is more than likely not tempered, if it is you will have to go with hang on the back overflows but drilled are prefered.  Just my two cents!
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Post by matt_longview Fri 14 Jun 2013, 9:28 pm

I wouldn't go hang on the back overflows ever.  I'm paranoid as heck about those things. Lol.

I would consider drilling it.  It'd be a few hundred more getting that with glass overflows installed but it would be well worth it in the end.  I don't know how large that skimmer is, but I know the Skimmer I picked up for my 220 was a 9" cylinder at 30" tall. That one doesn't seem but a 4th that size... But it's tough to tell without a size reference.

If that's not an option I'd go with the skimmer section, a rock rubble section with a Powerhead in it moving water underneath the rubble, a media rack with a place for a filter pad and cheato algae and finally your return section.  I'd keep a hang on reactor such as a NextReef separate.  You should have at least 4x to 6x tank volume going through your filtering, so make sure the return pump(s) are/is high enough GPH.  Should be 1100 or more after head loss.

You'll have to have plenty of power heads in that guy too.  The corner will remove any linear water flow (which is great for random water movement) and cause more water to need moved.
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Post by DonnieP Fri 14 Jun 2013, 9:43 pm

The HOB overflows were only a suggestion if the tank can not be drilled, some tanks with multiple glasses like this were made from all tempered glass and can not be drilled. The overflows can be made from 1/4" black plexiglass and for not much money, I have cut, bent, routed the dental work on several of them. Only problem I see is maybe not enough room to get a sump in the stand without removing an end panel. I will agree HOB overflows are not prefered but are an option, I know of several tanks been running them for years with no problem. I don't like them because they are noisy. The skimmer in that DAS system is a joke, the whole filtration system is, they were never very sucessful systems.
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Post by matt_longview Sat 15 Jun 2013, 12:14 am

I know people using the overflows successfully also.  They work.  Didn't mean to portray that.  It is an option for sure.

I'll say this... $200 is a STEAL of a deal and I'd have bought it in half a second.  That said, I'm not a fan of all-in-ones or DAS tanks that are that large.  The equipment necessary to run that large of a tank how I'd prefer to is huge and will never fit into those sections.  And yet... I'd have still bought it on the spot. Haha.
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Post by Yeti Sat 15 Jun 2013, 12:32 am

What an awesome deal! Please keep us up dated on it's progress, you'll be building a beautiful tank.
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Post by reileywatts Sat 15 Jun 2013, 12:50 am

I had a 120gal DAS for about 2yrs before I downgraded to my 90gal. My DAS had 3 chambers: skimmer, fuge, and return. I thought it was a great tank....sometimes I wish I still had it. 

I've got HOB overflows on my 90gal. The only issue I've ever had with my HOB is it loses siphon from time to time. I just upgraded to a RR 120gal that I'm about to get setup!
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