Using an extra large HOB on a nano, for increased volume - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 01-31-2010, 09:17 PM Thread Starter
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Using an extra large HOB on a nano, for increased volume

Okay I'm borrowing this idea from the saltwater side of things, but I'm thinking about using an Aquaclear 70 on my 2.5g. I've been having some problems keeping my 2.5g stable, mostly due to evaporation, and I'm thinking the extra volume might help out. I might also use it like a refugium and grow some floaters in it, but that remains to be seen.

My question is, what would be the best media to put in the aquaclear to impede the flow? Just more filter floss? Or would it be better to add just a bunch of ceramic rings or something, to establish a ginormous bacteria colony? Or should I try to use it the modded way that nano reefers use it, but adapted for freshwater, like growing moss in it instead of macroalgae?

The whole point is to make the tank act like it's a bit bigger than it really is, and try to keep the water conditions more stable than the average 2.5g tends to be. I even thought [very briefly!] about using another 2.5g as a sump.

I just need some suggestions.
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post #2 of 8 (permalink) Old 01-31-2010, 11:25 PM
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I used Java moss and Ceramic Rings in my RedSea nano filter and it was great!

For the Aquaclear, you should go Moss, Rings, then Filter floss...

Hope this help!
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post #3 of 8 (permalink) Old 02-01-2010, 02:03 PM
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change the impeller from the stock to an AC20

it should be a direct swap. alternatively you could trim the impeller "wings" but if its not done right, it will cause the impeller to be unbalanced and it would wobble and make noise...
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post #4 of 8 (permalink) Old 02-01-2010, 02:24 PM
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You can severely impede flow by putting a filter sponge inside the intake. That being said, it will likely cause more noise from the filter.
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post #5 of 8 (permalink) Old 02-01-2010, 02:38 PM
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Quote:
Originally Posted by over_stocked View Post
You can severely impede flow by putting a filter sponge inside the intake. That being said, it will likely cause more noise from the filter.
it can and will stop flow though, the guys that do the picoreef tanks use AC70 on 2.5 and 3 gal tanks all the time for a fuge, with the swapped impeller....

if your really cheap, someone told me you can buy an AC20 from petco or one of those stores, jack the impeller, then return it stating it doesnt work, blah blah blah and get your money back.....
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post #6 of 8 (permalink) Old 02-01-2010, 03:20 PM
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Blocking the intake a little bit sounds like a good idea. I mean that is how the flow control is designed anyway. I think the water just circulates around the media a little more. Probably not good if you want a 'fuge, but if it is just media...

Sounds interesting, I hope to see some pictures and hear how it works. Sounds like a good idea.


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post #7 of 8 (permalink) Old 02-01-2010, 08:15 PM
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1. Throw away the basket because it will open up alot of space and replace it with a small piece of eggcrete to block anything flowing out. In mine I have 5 or 6 bioballs, half of the foam insert next to the intake tube, the ceramic stones, and my heater. I could still fit in a bag of purigan or something similar or additional filter media.
2. The filter also has the ability to change flow by moving the intake tube left or right (figure you know this).
3. Also I would get a piece of wood to set the filter on since it is such a small tank instead of just hanging it off the back.
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post #8 of 8 (permalink) Old 02-01-2010, 09:11 PM
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Quote:
Originally Posted by blockclimber View Post
change the impeller from the stock to an AC20

it should be a direct swap. alternatively you could trim the impeller "wings" but if its not done right, it will cause the impeller to be unbalanced and it would wobble and make noise...
This. Just swap impellers.

-Charlie


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