Help me pack my canister filter - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 08-30-2012, 09:17 PM Thread Starter
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Help me pack my canister filter

My tank: 29 gallons, CO2 injection, 48 watts T5HO lighting, NPK+Trace and Iron dosed according to bottle instructions.

Canister filter is Ehiem 2217, everything is snug in the current configuration:

(From Bottom to Top)

Ceramic noodles
Blue coarse pad
Ceramic (?) balls
API Nitrazorb and Phosphate pad
White fine pad
Lid

Now my question is:

Are the nitrate and phosphate pads robbing my aquarium of vital nutrients? Would replacing one or both pads with a bag of Purigen make a difference?

-Calvin
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post #2 of 5 (permalink) Old 08-30-2012, 10:23 PM
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Yes, absolutely you are working against yourself. Have you read the labor on the products that you are using? Why would you dose nitrogen and phosphates and then go and use products which are intended to remove just that? Not only are just wasting your money using fertilizers which are used up from your removal products, but you are wasting money buying the removal products to begin with. More importantly though, you are inhibiting your plants from acquiring these nutrients. Take out the nitrazorb and phosphate pads and either leave it empty or fill it up with more bio media.


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post #3 of 5 (permalink) Old 08-30-2012, 10:47 PM Thread Starter
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Yeah, I really shouldn't take what my LFS says at face value anymore. Should I replace it with a bag of Purigen, or does that also affect nutrients in the water?

-Calvin
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post #4 of 5 (permalink) Old 08-30-2012, 10:52 PM
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Fine white pad isn't even necessary imo. Ditch the nitrasorb and phosphate stuff. You can optionally add a bag of carbon/purigen if you wish, but I don't find that it's 100% necessary unless I'm just starting a tank up.


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post #5 of 5 (permalink) Old 08-31-2012, 12:33 AM Thread Starter
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Thanks for all the help guys, I've had those pads in there since I started the planted tank. Hopefully ill see less issues with melting now

-Calvin
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