Wanting to Fill a 3.5 Gallon Tank - The Planted Tank Forum
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post #1 of 2 (permalink) Old 06-16-2018, 08:15 PM Thread Starter
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Wanting to Fill a 3.5 Gallon Tank

Hello! I have a 3.5 gallon tank with an unfortunately powerful filter. The filter was originally for my ten gallon tank, and I am using it while I treat my fish for ich and a bunch of other stuff. I tried putting a betta and an African dwarf frog inside, but they ended up being thrown around, so I had to get a five gallon tank for them to live in. I was wonder if a few hardy shrimp or even a crayfish might do well in these conditions? I can get some taller decorations to disperse the flow of the water. I also don't have a heater or a lid (the lid it came with doesn't fit with the filter I'm using). We usually keep the house at around 68-72 F (20-22.3 C). I am willing to just grow some live plants in it, but I would like something to keep algae under control (I also don't know what kind of substrate to use). I hope you can help! I also included a photo of the tank below!
(Sorry if I repeated myself, I lost most of the draft because my phones bugged out)
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post #2 of 2 (permalink) Old 06-17-2018, 12:31 AM
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For starters, I would slide the filter to the other side to create a positive flow pattern with the shape of that tank. I would also raise the water line until the lip of the output is submerged about 1/4". You should reduce the output flow as much as possible. Most HOB filters have flow adjustment. You could also add a sponge pre-filter to the HOB intake to reduce flow. This will also keep shrimp fry from getting sucked into the filter, should you decide to add them. Using finer sponges and filter floss in the filter compartment will also help to reduce the overall flow.
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