i have a juwel vision 260 tank and my external filters are fluval 205 and 304, i could do with more water movement, i have a powerhead ph402 i think by aquaclear, i got it with my second hand set up but i think the previous keeper used it just to move water, can i use the powerhead as some kind of internal filter without using it on an undergravel filter ?
this is for a malawi set up
this is for a malawi set up


