R Budds Posted April 23, 2022 Share Posted April 23, 2022 (edited) I am setting up a new 20 gallon long with a denitrifying filter that is similar to other tanks I have had success with. I hope to keep some Bolivian Rams in this tank so I will be using an API water softening pillow to get it around 140ppm GH. For this type of filter I use SafeTSorb and a UGF. First I made the UGF. It's made from plastic fabric that has 7 holes per inch. Below is the bottom of the UGF (upside down). I made the supports from scraps of the plastic fabric and EPP foam. I angled the longer ones towards the uplift tube area (green circles) In the pictures above you can see how the corners are just cut out and folded over, like a box, then hot glued. I added a few more random foam supports (not pictured) in areas that flexed too much. I put my BBS hatching bottle on it to see how well it held the weight. Below is the uplift tube connection. I used 1/4 inch thick EPP foam to make each level. This is to create a funnel effect for the uplift tube and to pull water from a bigger area. Below is the foam connector attached to the UGF. The green lines are the cutouts in the bottom 2 plates and the blue is where the uplift tube sits. In the picture above you can see the height to the UGF, the plastic fabric is 7 holes per inch, so about 1.3 inches at the back and about 1 inch at the front. Below is the uplift tube fitted into the foam connector and the connector is hot glued to the UGF. I just pushed the tube in because the foam seals well. Below is the foam block glued to the UGF. The green circle is the hole in the bottom foam plate where the water goes up into the tube. With the uplift tube and bottom supports in place i put in some SafeTSorb to hold it. In this tank I used bigger granules on the bottom, so they don't fall through the UGF. Below are pictures of separating out the smaller rocks. I thoroughly rinsed the SafeTSorb before putting it in The tank. I used the same size plastic fabric (7 holes per inch) as a strainer; I believe 5 holes per inch is available too for even bigger ones. Just give it a good shake and the small ones fall through. This is as far as I've gotten today. I need to grade a lot more SafeTSorb to get about an inch of bigger rocks on the bottom layer. Then I plan to put about an inch of upgraded SafeTSorb and cap it with the small ones I graded out. Edited April 25, 2022 by R Budds Spelling error Link to comment Share on other sites More sharing options...
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