under gravel filter? in Introductions Posted August 6, 2004 · Report reply I have tanks set up both ways , some with UGF's and some without. I am slowly doing away with the UGF's . As my cichlids get bigger they dig more and they uncover the filter plate and then it doesn't work properly. I am slowly going to all sand substrate in my tanks. If you don't already have it in I wouldn't use it . Hey snatched if you want a place to get plains for building your own tank stand check out www.garf.org Go to the DIY section and select tank stand construction , you just put the size stand you want to build and it does all the math for you. Tells you how many and how long you need to cut each peice of wood and how to put it all together. It's a snap !!! Plus it alot cheaper !!!!!