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Anyone with a 2213 on a 20G tank feel regret over not getting the 2215 instead?

It will be for shrimp tanks and I don't want to fool around but if the 2213 is sufficient then I can afford to get 3 total instead of 2 2215s so that would be nice.
 

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A single 2215 on both of my 20g tanks (a tall and a long) is just about right imo. Sometimes I wonder if I should've gotten the 2217 for the long tank. :hihi: The only issue I have with the long is that with lily pipes I don't feel like there's enough water circulation (i.e. stirring of excess food, waste, etc. for the filter to pick up) so I added a Koralia Nano 240. Works great as long as long as the HC is rooted in well. :)
 

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I've got one on my 20 Long. If you like the hurricane look inside your tank get more than the 2213. My plants don't sway all over the place, but I can definitely see the CO2 bubbles circulating completely around my tank without issues. I would not hesitate to buy it again for this tank.
 

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I've got one on my 20 Long. If you like the hurricane look inside your tank get more than the 2213. My plants don't sway all over the place, but I can definitely see the CO2 bubbles circulating completely around my tank without issues. I would not hesitate to buy it again for this tank.
Spray bar or lily pipes? I notice with the lily pipes I have very little to no plant movement. I only have consistent movement (natural movement, I'd call it) now that I've added the koralia. My 20 tall with a spray bar (cut to the width of the tank) on the other hand has constant plant movement - all the way down to my crypts and chain swords.
 

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Spray bar or lily pipes?
I use this oxygen diffuser attached to the outlet. I just open it at night, and close it during the day.




I notice with the lily pipes I have very little to no plant movement. I only have consistent movement (natural movement, I'd call it) now that I've added the koralia.
Ah...that makes sense.
 
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