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New Paintball CO2 Set Up - Help!

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I recently ventured into the world of a hi tech set up after successfully running a low tech tank for a year. Here is the info on my tank, lighting and CO2 set up:

40 Gallon D: 17 W:32 H:25
Lighting: Finnex Fugeray Planted + LED
CO2: 20oz Paintball, 2 bubbles per second
Fish: 6 Zebra Danio Tetra, 4 Glo Tetra
Water Temp: Approx 78 degrees
Photo Period: 10 hours (12pm-10pm) CO2 comes on at 11am shuts off at 9pm.

I've had this set up for around 4 weeks and I'm starting to see a decline in plant quality. My telanthera have lost their pink leaves and turned brow. I've also seen my amazon swords start showing signs of melting.
Am I injecting too much CO2, not enough. Is my lighting adequate for plant growth with injection?
Thanks in advance for any help!!
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What is your fertilization regime? With more light and CO2 your are pushing the plants to grow more but if you are not supplementing what they need in the way of macro and micro nutrients then they will absolutely suffer. Was there any reason you decided to add CO2 if everything was going well for a year? If you just wanted to see more growth and try new plants then definitely do some research in these forums as to what you want out of the tank and formulate a good plan.

There are a lot of people on here who know A LOT and there is A LOT of information already in existence that you can find by searching on the different forums.
 

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I recently ventured into the world of a hi tech set up after successfully running a low tech tank for a year. Here is the info on my tank, lighting and CO2 set up:

40 Gallon D: 17 W:32 H:25
Lighting: Finnex Fugeray Planted + LED
CO2: 20oz Paintball, 2 bubbles per second
Fish: 6 Zebra Danio Tetra, 4 Glo Tetra
Water Temp: Approx 78 degrees
Photo Period: 10 hours (12pm-10pm) CO2 comes on at 11am shuts off at 9pm.

I've had this set up for around 4 weeks and I'm starting to see a decline in plant quality. My telanthera have lost their pink leaves and turned brow. I've also seen my amazon swords start showing signs of melting.
Am I injecting too much CO2, not enough. Is my lighting adequate for plant growth with injection?
Thanks in advance for any help!!
Rather than increase CO2, build a Griggs reactor to better dissolve CO2.
 

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10 hours is a long photoperiod, and with not enough CO2, they are struggling to keep up with demand bring generated by the lights.

I'd drop lighting to 6-7 hours for now, measure pH for a 1 point drop, and then increase photoperiod once plants are happy.
 

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Discussion Starter · #6 ·
Hi jmontee. Thanks for the response. My fert regime is API Leafzone, 20ml every three days and Seachem Flourish Excel (1 cap) every 3 days. I ran a water test and my pH is at around 6.8, Nitrate 0-10ppm, Nitrite, 0ppm and ammonia is 0ppm. Having read a few more threads I'm thinking my photo period may be a little long to say I just introduced my plants to this new hi tech set up.
And yes you are right I wanted to introduce some more plants, add a little more color too.
 

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Leaf Zone only contains iron and potassium. Amazon Swords get majority of its nutrients from substrate. Depending on what your substrate is, I would try using root tabs for it.

Certainly look up EI (Estimative Index) - it is one approach to providing nutrients for the plants.
 
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