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Old 07-25-2020, 04:48 PM   #1
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Does My Medium Planted Tank Need CO2 Injections?

Hello,

This is my first time posting, so please excuse me if I have broken any etiquette rules here.

Based on the photo of my tank, do you think that this many plants requires CO2 injections? I’ve added fertilizer and there is 11 fish (zebra danios and neon tetras), 2 Bristlenose Plecos, 2 Nerite snails, 2 assassin snails (there are pest snails also), 3 Amano shrimp, and 4 red cherry shrimp, so I figured the high bio load would provide sufficient nutrients for the plants, but I would like your opinions too.

The plants include water sprite, java moss, java ferns, Marimo moss balls, Aponogeton crispus, nomaphila stricta, and another I’m not quite sure the name (tall stem with lots of short leaves). Also, if you think my tank is overcrowded (not enough space for the fish), please let me know - the tank is about 17.5 gallons.

Thank you for any and all advice. If you would like additional information, please let me know.
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Old 07-25-2020, 08:12 PM   #2
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Hello,

This is my first time posting, so please excuse me if I have broken any etiquette rules here.

Based on the photo of my tank, do you think that this many plants requires CO2 injections? Iíve added fertilizer and there is 11 fish (zebra danios and neon tetras), 2 Bristlenose Plecos, 2 Nerite snails, 2 assassin snails (there are pest snails also), 3 Amano shrimp, and 4 red cherry shrimp, so I figured the high bio load would provide sufficient nutrients for the plants, but I would like your opinions too.

The plants include water sprite, java moss, java ferns, Marimo moss balls, Aponogeton crispus, nomaphila stricta, and another Iím not quite sure the name (tall stem with lots of short leaves). Also, if you think my tank is overcrowded (not enough space for the fish), please let me know - the tank is about 17.5 gallons.

Thank you for any and all advice. If you would like additional information, please let me know.


The short answer is no. But it depends on your ambitions as an aquascaper. If you want to maximize growth, color and health then yes. But you can have healthy plants without it. I have a 20 cube with no CO2 and Iím always trimming and plants look good. Not a show tank but it looks good.
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Old 07-25-2020, 08:23 PM   #3
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The short answer is no. But it depends on your ambitions as an aquascaper. If you want to maximize growth, color and health then yes. But you can have healthy plants without it. I have a 20 cube with no CO2 and Iím always trimming and plants look good. Not a show tank but it looks good.


What Fertilizer do you use?
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Old 07-26-2020, 07:53 PM   #4
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As above - itís not needed. The CO2 in water naturally is say 3 to 4ppm and injection lifts it to say 30ppm which provides a lot more carbon to the plants. So faster growth (along with greater algae risk perhaps). But natural setups can do just as well for many plants, look as nice and less pruning work.
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Old 07-26-2020, 09:15 PM   #5
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Tank looks pretty great as is. Co2 is only going to speed up everything related to growth, algae, deficiencies.
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Old 07-27-2020, 10:54 AM   #6
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What Fertilizer do you use?
Aqueon Aquarium Plant Food (17.4 oz) is the fertilizer I use. Thanks all for the replies! It looks like I am safe for no CO2 injections for now.
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