Filtration Options - Wanted Air Operated?

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VickiandKev

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My partner have recently decided to slightly change our 'breeding' *coughjustbecausewelikefishcough* setup from a rack of mainly 2ft tanks to several racks of 6ft tanks. These tanks will be approximately 72" x 15" x 15" or a little smaller.

We have all the kit for air filters, a nice big powerful air pump, all the airline, lots of small sponge filters and lots of airstones.

I really don't want to have to switch to a sump filter mainly because of space constraints but also because it wouldn't really work with how we envisage the space and the setup for the fish.

I've been racking my brains to think of the best way to filter these tanks - they will be massively understocked, but housing plecs, the bioload will need some dealing with.

Our airpump has about 70L/min output so it will easily power whatever we want it to.

My question, would this work ...
c239220d01054e6d95546051cd046133.jpg


Basically, it would be an acrylic box with a removable lid, I would drill one big hole in the lid for the uplift tube, and lots of little ones for water inlets.
Then the uplift would go into a wider tube with slits for water inlets which would be positioned inside the box.
The lines across the box are just to give an idea of layering the filter media, so I could have sponges at the top, then ceramic rings/bioballs, plastic scourers and then fine filter wool.

I would be able to see all of the filter media if I made these from clear acrylic boxes and they would be easily maintained as I could just remove the box and then take the lid off and there is all my media. Obviously an airstone would be positioned in the uplift tube to pull water through.

I would plan to use at least shoebox-sized boxes for this to try and maximise the biomedia volume ... so would it work?

Any ideas appreciated, I realise it wouldn't look the prettiest, but I could easily hide it at the back behind bogwood I would imagine.

I could put two of these in each 6ft tank, and then airstones in the main tank too.
 
You have made a drawing of a somewhat standard box filter except that you have a smaller media volume than a standard box filter that size would have. It will work fine.
 
I don't think box filters are very widely available over here any more. I've only ever found one in shops, which I bought, but the box filter I am planning to make is going to be about 4 or 5 times the size of the one I purchased.

Thank you for your reply, it's good to know this idea will work and I'm presuming with the power my pump kicks out, it would work just as well if I were to make it bigger still?
 

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