Quick question about bio media for sump, this is my first time using a sump and obviously the result of this topic is going to be very subjective, What bio media do people use in their sumps and do you use more than just 1 kind?
thinks like biohome ultimate or seachem matrix or are these not worth it over ordinary koi pumice or lava rock?
this is for a freshwater tank
thinks like biohome ultimate or seachem matrix or are these not worth it over ordinary koi pumice or lava rock?
this is for a freshwater tank