2 diy sponge filters :)

[Railway City Tanks]

let me know

Just built and added to my med tank

New sponge filters installed DIY Railwaycitytanks

Total cost about $6cdn not counting air pump

 

[cwk84]

where's the filter? can have a look at it?

 

[Railway City Tanks]

Located in both back corners. PVC with air stones and rain gutter foam

 

[deeda]

Did you check the rain gutter foam packaging to see if it's been treated with a biocide or similar product?

 

[Railway City Tanks]

I did yes and it had no additives

 

[Railway City Tanks]

Seem to be working well. I'm eager to check the sponges in a couple weeks