I have a 100 gallon tank running on 2 ac110's for filtration. For the most part the filters do their job on keeping the water crispy clear. However on occasion my endli and senegal lay poop too big for the filter to suck up, so it just sits at the bottom of the tank. i usually get rid of it using a siphon. my question is what type of filtration is everyone using for their bichirs and what can you recommend me. i have limited space so i think a sump is out of the question