R Budds Posted April 4, 2022 Share Posted April 4, 2022 (edited) I am going to try to turn a one gallon pickle jar into a low maintenance permanent guppy growout nursery. Because of this I am not going to have any rooting plants. The anubias, java fern, and chunk of driftwood can be easily removed to get guppies out that have grown to the next stage. The screen nursery was a good temporary solution but it takes up too much space in the 5.5 gallon (upper right of the tank). Below is the pickle jar with a simple undergravel filter. The vinyl uplift tube has a bend that contours to the bottle fairly well. The bottom part of the filter is just a puck shape made out of plastic fabric (7 squares per inch) that's hot glued together. The uplift tube is cut on an angle and hot glued to the back of the puck. It's smaller than it looks, it's just small enough to fit through the neck of the jar. I made sure it was on the bottom and put the substrate over and around it. I put down a 3 inch deep bed of SafeTSorb. Above is the flow of the uplift tube. The lamp is a Tetra brand clip on USB led light. You can see a couple of the little guppies above. I filled it with tap water and half a cup full from the 5.5 gallon they were born in. Here are some pictures of the tube glued to the puck. I covered part of the upper plate, and the back part on either side of the uplift tube, with hot glue to make a funnel effect. An important note. It's not pictured in a noticeable way, but there is a bottom plate as well to keep the substrate out of the puck, since it doesn't sit perfectly as it would in a regular tank. The numbers are usual for our tap water except the pH is a little lower than before. These are the numbers after putting in the fish: TDS 430, GH 200+, KH 40, ammonia 0, nitrites 0, nitrates 40, and pH around 6.2 (it's usually 6.5 to 6.8). I'm not sure what their load on the tank is, but they grow fast and a lot of their food goes past them. Hopefully it works as well as my other tanks with similar filter systems. If it does work as well there should be virtually no maintenance required. Edited April 4, 2022 by R Budds Added note about bottom plate 4 5 Link to comment Share on other sites More sharing options...
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