too much flow? - The Planted Tank Forum
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post #1 of 4 (permalink) Old 11-08-2015, 11:03 AM Thread Starter
Algae Grower
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too much flow?

Hi all

My tank is a currently a 2ft high-tech planted tank and initially i used a 400 L/hr canister filter, i dissolve my c02 through an external Ista Reactor.

I've decided to change my canister (with the intention of increasing my c02 diffusion rate via stronger flow) to a aqua one 1200, which runs at 750 L/hr. I've noticed that my water is moving alot faster now and all the plants in the tank seem to be swaying left and right

My question is: is this way too much flow? my inlet is placed on one side of my tank and the outlet on the other.

Would this disrupt my dosing? i dose daily and im a little concerned the ferts wont have enough time to dissolve in the water and will most likely end up in the filter.

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post #2 of 4 (permalink) Old 11-08-2015, 11:22 AM
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You do have unusually high amount of flow in your tank but if it is too much or not depends on what you have in your tank.

BTW what's in the tank?? I hope you are not forcing some slow-moving fauna to a fast marathon on a tread-mill.

Fertilisers don't end up in filters - they dissolve in the water and flow with it till they are either absorbed by the flora or dumped during water-changes. What ends up in the filter are solid particles which cannot pass through the pores of your filter's media. If you are worried about dry fertiliser salts ending up in the filter media - be assured that they will dissolve in the water there and return back with the outflow of the filter into your tank.

If you have a choice, you have a problem, till you elect your choice. No choice, no problem, only consequences, learn to live with them.
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post #3 of 4 (permalink) Old 11-08-2015, 11:36 AM Thread Starter
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post #4 of 4 (permalink) Old 11-08-2015, 07:32 PM
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I really like the ADA way, both inlet and outlet on the same side of the tank. Fast water at the top, hits far side of tank and flows in intricate pathways back to the inlet. When inlet and outlet are on opposite sides of the tank one gets really interesting eddies that look like there is too much flow but is really turbulence.

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