125g Closed Loop Setup help

use the existing holes for closed loop and then add a canister for mechanical/bio filter.
;)

I like krytans drawing for plumbing
 
That's a huge thread, but from the pictures on the first page it looks like his sump will just overflow if the pump stops working... Unless there are things going on which can't be seen, I don't see what would stop the water from flowing back into the sump from all of those outputs.

But this has gone off in a different direction as I'm not setting up a sump anyway

The stand will not only have doors/shelves under the tank, but on the left side of the tank as well... I modeled it in 3D at home and will upload the render later but i'll see if i can show the general concept.

Tank stand
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I.........................I.........Hood..........I.........................I
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I..cabinet...I'''''''''''''''''''''''''''''''''''''''''''Tank''''''''''''''''''''''''''''''''''''''''''''''''''
I...............I
I_________I_______________________________________
I..........................I.........................I........................I
I........cabinet........I........cabinet.......I........cabinet.......I
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Drains to the left through the left cabinet...
If I do any kind of sump it will be for ease and to hide things and it will be above the tank in the left cabinet with a bulkhead plumbed to drain back into the main tank, not under the main tank...


and the tank looks like this
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2holes I0I...............................................................I
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hahaha yea, it would be much easier if i could upload images, but firewall at work is not very friendly


Heres a good thread on how another member has set up his sump and closed loop. http://www.aquariacentral.com/forums/showthread.php?t=161222
 
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There is always something to prevent the water overflowing the sump if the pump stops, on ace's tank it is the weir he has in front of the overflow.
Having a sump increases the volume of the tank, gives you somewhere you can put other equipment that you would normally have to have in the display tank and you get better oxygen exchange with a sump.
A closed loop is not going to give you anywhere to hide your heaters and you won't be able to have it run through a filter like you wanted. A closed loop is like having an external power head, they use more energy than internal power heads and are noisy.
At the end of the day it's your tank and it's up to you what you do with it.

Your stand looks how i wanted to build mine but the wife said no. I look forward to seeing how this project turns out, please keep us updated with the build as we all like to see these things develop.

Here's my current build if you are interested http://www.aquariacentral.com/forums/showthread.php?t=189483 you can see the glass weirs i have in the corners of the tank to stop the sump overflowing.
 
Nice setup Kryton, stand is coming out nice... I didn't get a chance last night up upload the renders for my stand yet, as soon as I get a chance (if i remember) I'll upload them.

The nu-clear filters are run inline in the closed loop...
Tank -> pump -> filters -> Tank
or if i split the return to an overhead sump, half of the return water will go to the sump and then back to the tank.
 
Thanks.
Never seen those nu-clear filters before, i had to google it to see what they were.
With a closed loop system the outlets and the ruturn are both underwater so if the power was to go out air cannot get into the system.
 
I haven't set them up yet, but I hear very good things about them. They are also very well built and heavy duty. The only downside is they are only 1" in/out but for a tank this size that should be more than enough.
 
Finally remembered to post the renders of the tank... check it out.

tankstand.jpg
 
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