Building my refugium and I'm siliconing the baffles in so I starts with the middle baffles, 1 on each end. The baffles allowing water to flow under I supported with two boards to hold them up. Next silicone the water over baffles. I go to remove the 2 boards, oh crap they're too long and stuck. Next time use 4 smaller pieces with plenty of room to remove them. I used what was closest at hand not thinking cause I had bigger things on my mind setting up a 120, 30 gal sump and 75 gal refugium.