I am purchasing a glass frag tank that is 96 (long) x 24 (wide) x 16 (tall). I am going to plumb into my existing system. Because of my sump height, I cannot have the water exit tank from holes in the bottom. I need to have the return holes drilled in the side. With small tanks I’ve plumbed in, I’ve just drilled a single hole in the side and left it at that. Is that the best option or are there better options. I’d be grateful for the wisdom of more experienced members. Thanks.