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I have a 55gal planted tank with xp3 spray bar I want to know how much flow is to much on plants? I have blyxa japonica and cabomba furcata in the path of the spray bar on the other side of tank everything is almost falling over because of the high flow. I really don't want to have any surface movement at all to keep the co2 in. I tryed the other Power Jet Nozzle but it has to much flow, I also moved the spray bar kinda pointing at the surface but then it will get fast swirls. Any1 got any advise?
 

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Can you just use the jet (no spray bar) and place it in the front of the tank such that it doesn't agitate tall plants directly? I have the same problem and i just have to deal with some plants getting waved around.
 

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Fresh Fish Freak
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I just try to arrange my tall plants so they aren't directly in the flow, and using a crook-shaped return instead of the flow bar may be an option for you.

Also FWIW, strong current across the top of a tank isn't as much an issue for CO2 outgassing as surface agitation. As long as your filter returns aren't actually breaking the surface of the water, I wouldn't worry about current across the top.
 

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i find algae does better in more "stagnant" water - some current flow is good as long as your not breaking the water surface if injecting CO2. by the way , the Xp3 comes with a current restrictor valve. i use mine with the spray bar on my 29 gallon and it works great for slowing down the current.
 
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