If you use a grate with only horizontal bars maybe 1 to 1.5" apart, it will not clog up as quickly as a horiz/vertical matrix grate. Smaller fish will still get through, which is the case for either type of grating.


Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."