Aquarium Flow - The Planted Tank Forum
 
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post #1 of 9 (permalink) Old 06-08-2014, 08:46 PM Thread Starter
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Aquarium Flow

I am in the process of setting up my new tank, and I want to make sure I have good flow in the tank, before it planted and anything in it. The tank will have a sump with dual overflows. A few months ago I saw on TV an aquarium show where they had these small plastic things, not sure what they are called, but they were using them to test flow I the tank, and was very good indication of where they had dead spots. I cannot figure out what they were called or the name of the show. Does anyone know what I am talking about?

Thanks
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post #2 of 9 (permalink) Old 06-10-2014, 05:29 AM
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Just add food flakes and watch it float around. Hold it under water before letting it go.
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post #3 of 9 (permalink) Old 06-10-2014, 02:52 PM
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You've given us no info as to what you have or are going to have to create tank flow. Flow is also affected by many other variables such as objects in the tank. In a well planted tank the plant movement itself will tell you alot about your flow.
Never heard of plastic things you describe.
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post #4 of 9 (permalink) Old 06-10-2014, 11:12 PM
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I have no idea what they used, but I imagine you could just take a stick, and tie a few pieces of colorful thread/string on the end, and poke it around different areas of the tank to see how much they move around.
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post #5 of 9 (permalink) Old 06-11-2014, 03:29 AM
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I have dropped red food coloring in at spots to check for dead spaces.


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post #6 of 9 (permalink) Old 06-11-2014, 05:59 AM
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Quote:
Originally Posted by asudavew View Post
Just add food flakes and watch it float around. Hold it under water before letting it go.
This is what I do, too.

For some reason people like to hotly debate this topic (how much flow you need on a planted tank), but the reality is- there's no *right* answer. It's figuring out what works for YOU.

You can maintain a healthy planted tank with no filter/flow at all.

Good flow can be a really useful tool for helping filter debris out of the water and preventing "dead spots" which can accumulate debris. Debris buildup and decomposition tend to fuel algae issues.

There are meters that you can buy that will measure water movement (that may be the "plastic thing" you're talking about?) Aquarium hobbyists tend to just go by the manufacturer gph (gallons per hour) turnover ratings on their filter and/or powerheads, though. Especially since achieving an "exact" target isn't necessary.





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post #7 of 9 (permalink) Old 06-11-2014, 03:00 PM
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And then there are always the different outlooks on what you may want in a particular tank. When breeding African cichlids, I often had deadspots and did not mind at all. When it came time to clean, I could just go to those spots and depend on a lot of the small stuff being there rather than having to chase it all over the bottom. Whether they are "dead spots" or handy spots where the trash collects can depend on outlook?
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post #8 of 9 (permalink) Old 06-11-2014, 04:22 PM
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Oh- I did forget to mention that on large CO2-injected tanks, ensuring good flow can be necessary to make sure that the CO2 is distributed properly through the tank.





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post #9 of 9 (permalink) Old 06-11-2014, 04:29 PM Thread Starter
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Hi Everyone,
Thanks so much for all the responces. In regards to flow, I know things will change as I add hardscape and plants, but I wanted to see an easy way to see if I had dead spots before I really got the tank up and planted. Several of you suggested some ways that I can try. Also CO2 I will be using so having good flow will help with that as well. I know a lot of this will be testing and moving stuff around once tank setup, but thought I would ask since I saw these things on the show they were using to test flow. It was on the show TANKED. I am trying to go back and figure out what one it was on. The things they were using were nice, because if they had any dead spots, then these things that moved around in the tank would all just collect in that area.

Thanks again for all the information.
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