Small Internal Filter

[mag123]

my son has a small internal filter in his bedroom tank in has a small 3 cm square 10 cm long sponge in it could i cut the sponge so only a quater is left them fill it with substrate pro from my filter and put small bit of filter back on the bottom to catch particiles entering.

 

[fluttermoth]

You could, but you risk losing a significant part of the bacterial colony, and if your substrat pro is coming form a much bigger filter the amount of bacteria that has on it might be quite low in comparason.

Why do you want to do this anyway? There may be a better way arond th problem if you tell us what it is!

 

[waterdrop]

Agree with fluttermoth. In a very small filter the "open spaces" though with the water travels as it gets filtered are smaller and more proportional to the filter design. Larger balls like substrat pro really need a larger "bed" of material because the spaces between the balls will be bigger. And as said, the bacteria per volume will be lower since it is coming in from a larger filter. The tank volume and inhabitants are important information for helping in this case.

~~waterdrop~~

 

[mag123]

no probs with filter or water stats 40 ltr tank with 6 neons and 5 cherry shrimp just an idea at 7 oclock in the morn thought might work out better thats all