is it a bad idea to remove my spray bar? - The Planted Tank Forum
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post #1 of 16 (permalink) Old 12-22-2014, 07:38 PM Thread Starter
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is it a bad idea to remove my spray bar?

I wanted to know what you guys think about removing the spray bar from my filter. I feel my fish would prefer less movement. If I turn off my filter to do tank maintenance the fish seem to move around the tank more. I know my gouramis would enjoy it.

So by doing this I would lose a lot of water movement, not sure how big of a deal this is considering my stock. I assume plants might suffer a bit?! Lack of flow moving nutrients around? I would also lose surface agitation and since my tank does have co2 or excel that might be a really bad thing. I have never not had the spray bar over the past 9 months.

I am not too worried about the substrate collecting debris. I have 7 kuhli loaches, 8 Cory's, and 1 bn pleco and athey all do a good job and kicking up stuff from the substrate.

So what say you? Removing my spray bar to provide.my fish a more ideal environment going to be planted tank suicide or should be fine?

Filter is a eheim pro 3 2075 and tank is 75g

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post #2 of 16 (permalink) Old 12-22-2014, 08:22 PM
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I have the same dilemma. I have a colony of endangered livebearers that have been relocated to my sump due to the flow of the spray bar in the main tank. What I think will take of the force is to make a new spray bar that sits in the tank. With a dremel, I will make a ton of slots in the pvc pipe to help slow the water flow down, but not removing it from the main tank. I will also make sure to drill siphon-break holes at the top.
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post #3 of 16 (permalink) Old 12-22-2014, 08:31 PM Thread Starter
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I was thinking of rotating my spray bar so that its pointing right at the glass and not across the tank. This way I still get great surface exchange along that whole side but the rest of the tank is pretty much still.

So surface agitation is not an issue with that, the only concern at that point is flow.

But with the amount of stock I have maybe them moving around is enough to move the ferts around too?

Thoughts?

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post #4 of 16 (permalink) Old 12-22-2014, 08:43 PM
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I drilled out the holes a bit larger and it reduced flow perfectly, i like the idea of a slower cannister, more contact time with bio media, also the reactor gets better absorbtion.. that's a whole differnt scenario though. I'm sure you've got some power tools lying around phillip??
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post #5 of 16 (permalink) Old 12-22-2014, 08:44 PM
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You lose flow with a spraybar, less water can go through the restricted outlet. You gain velocity with the spraybar, water comes out faster. Try just taking off the spraybar to see what you think.

If you drill larger holes in the spraybar the holes furthest from the pump won't have much water coming out. I'd drill out the furthest holes a little and see how it goes then a couple more and so on until you get what you want.

What about turning the spraybar around so it faces the glass? That would diffuse the flow more.


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post #6 of 16 (permalink) Old 12-22-2014, 08:46 PM Thread Starter
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Yeah plenty.

I think before I drill em bigger i will try this setup for a bit and see how it goes.

Here's a pic of what I am thinking of doing.
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post #7 of 16 (permalink) Old 12-22-2014, 08:47 PM
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After reading a post from "Nico" well over a year ago I removed the spray bar from all of my tanks (75'55, 40 , 29). In my humble opinion it works better. Flow is just fine but no hurricanes


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post #8 of 16 (permalink) Old 12-22-2014, 08:48 PM Thread Starter
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With it turned to the glass 85% of the tank maybe more is nice and calm.

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post #9 of 16 (permalink) Old 12-22-2014, 08:52 PM
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I also drilled a few random holes pointed down towards the substrate.. against the glass as well..
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post #10 of 16 (permalink) Old 12-22-2014, 10:05 PM
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I find spraybars to be a pain to keep clean as they tend to collect algae for me. So going with just the open end works much better for me. As the water comes out all in one spot, I find it moves the water slower but further out across the larger tanks.
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post #11 of 16 (permalink) Old 12-22-2014, 10:59 PM
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Quote:
Originally Posted by PlantedRich View Post
I find spraybars to be a pain to keep clean as they tend to collect algae for me. So going with just the open end works much better for me. As the water comes out all in one spot, I find it moves the water slower but further out across the larger tanks.
I've discovered this as well.. what's up with that? Nasty strings blowing in the flow.. I'm following closely here..
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post #12 of 16 (permalink) Old 12-22-2014, 11:04 PM
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I removed the spraybar on my 2213 and I the output is adjacent to my powerhead. Together they push out into the tank. Surface agitation is good but if the surface is broken and not a ripple, it degasses the CO2. If your not running a sump, which obviously not if there is a canister, water will evaporate and the spray will eventually be above the waterline if its not topped off every so often. It got annoying for me so I removed it. Facing it towards the glass works just as well as enlarging the holes to slow down the overall flow into the tank itself.

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post #13 of 16 (permalink) Old 12-22-2014, 11:07 PM Thread Starter
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I read that the water surface has to break for there to be gas exchange.

I don't dose excel or have pressurized co2.

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post #14 of 16 (permalink) Old 12-23-2014, 12:38 AM
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Water will do the gas exchange any time it is exposed to the air. It doesn't have to even be a ripple. I think maybe the ripple idea got started so that people can tell that the water is really moving but other than getting more up to the top and us being able to see it, the ripple serves no purpose. The ripple may help to break up a surface scum but that is a whole 'nother story.
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post #15 of 16 (permalink) Old 12-23-2014, 01:26 AM
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Animal capacity depends on the surface area of the tank. A shallow tank of the same footprint theoretically can carry the same bioload as a deep tank. A simple ripple increases the surface area of the tank and thus the carrying capacity quite a lot. It is important!

Either have few animals in the tank with a still surface or a busy tank with lots of animals with a ripple on the surface!


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