Multi-Stage Sponge Filters

Multi-Stage ppi Cube Sponge Filter Sponge Filter Lift Tubes

Multi-Stage Sponge Filter
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 3-Stage 4x4x6 Sponge Filter (96 cu/in)   $5.95
 3-Stage 5x5x6 Sponge Filter (150 cu/in)  Out of Stock

After testing this new Multi-Stage filter we are thrilled with the results.  They contain layers of 15 ppi, 30 ppi and 50 ppi foam.  Each pore size will be more efficient at removing suspended particles of a certain size.  The largest pore size is on the bottom to help remove the heaviest waste as it sinks to the bottom of the tank.  With the multi-stages you get maximum bio-surface area and the most effective particulate removal from each layer.

Complete filter includes , "Pro" Reticulated Sponge, internal weight and 6" lift tube.  You need to supply the airline and air supply.

 Our sponge is made from the finest reticulated waterproof filter foam in the world. It is extremely durable and completely fish safe.  All filter parts are made here in the USA.

The Internal-Weight Cube Sponge filters use glass balls to weight them down. They are not as heavy as the slate-bottom filters, but much easier to clean and the glass balls will never fall out. Some like to use these suspended in mid tank.  They work very well like this.

We may compress these during shipping to avoid "Oversize" charges.  Let them sit out for a day after receiving them and they will regain their original shape.

If the filter floats to the surface shortly after putting it into your tank, that means that air is trapped in the foam. Squeeze it thoroughly while holding it under water to remove the air. It helps to remove the lift tube while doing this. The foam is more dense than water and always sinks if there is no air trapped.

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  • 3" cube filter has a volume of 27 cubic inches
  • 4" cube filter has a volume of 64 cubic inches
  • 5" cube filter has a volume of 125 cubic inches

PPI stands for the number of pores per linear inch. 50 PPI is our smallest pore-size filter. It works great in tanks with very small fry and actually has the most surface area of all our foams.

Lift Tube

Assembly: Insert airline into the small hole drilled in the side of the top of the lift tube. Then push it to with 1/2" of the bottom. Then, insert bottom of lift into the small hole in the Sponge. Push the lift tube in about 1". It should be a tight fit.

Image is using a clear lift tube for demonstration purposes.

Shipping Quotes

The shopping cart will enable you to get a shipping quote before paying for an order. Simply add the items to the cart, view the cart by clicking on the "view cart" link in the upper left corner and it will enable you to get a total for the shipping before committing to an item.

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With 30 tanks I was looking for a simpler filter, easily maintained,good quality but inxpensive and of course would do a great job.The Multi Stage sponge filter,a new idea, fits what I was looking for. I purchased more than 30.Based on my recent experience I highly recommend this filter.

JULES BIRNBAUM, Sun Mar 01, 2015
In the past, I kept a couple different sponge filter in each tank just so I could have different foam sizes in the tank. On big tanks, not a problem, but on a tank where I want only one filter, this is ideal.
William Cooper, Sun Sep 21, 2014
Angelsplus sponge filters have always been my favorite. I like these 3stage best.
KD Harmon, Thu Aug 28, 2014
These work superbly. I prefer the internal weight. They are super easy to clean and maintain.
Michael Stearns, Tue Aug 12, 2014
When I saw these I had to give them a try. I love all your other filters and this seems like an ingenious idea. I like this design best of all.
Fred Perkins, Tue Aug 05, 2014