i have just started useing the black guttering from Home-base!
being black it gives fish the extra security of a cave ! i am using the part that is the end of a run where the downpipe fits onto . i also use a down pipe bottom spout like a 45 degree bend pushed on top of the guttering and the fish love it !
sterbai dont realy need caves ? if they spawn then its on the glass of the tank
