Sponge Filter with Bio filter

[hungvanvo]

I watch this video clip last week http://www.youtube.com/watch?v=UBFrN2BozNQ and I make 2 of the cost me $14.75 and it work better than the ATI Sponge. It will work great when the power run out because I just need an air pump it work both water moving and reduce ammonia( I use Seachem matrix in the cup). The $14.75 for ( 2 Cup $7.50 at Family Dollar Store $2.5 PVC connect at any hardware store and $4.75 Aqua Clear 110 foam from Amazon) IMG_0488-Optimized.jpgIMG_0489-Optimized.jpg