60 Gallon Tank Help with planted tank

ZeroSum

I have a fairly heavily planted tank, noticed a few days ago that the leaves on a few plants are turning yellow with brown spots. Bought a fluval co2 measures and drew the conclusion of it hanging in my tank for a day now and staying blue for co2 deficient instead of the happy green color for where it needs to be. What should i use for a co2 system? Want the best bang for my buck but i dont need an overly complicated system and i need it to be newbie friendly if possible, or at the least alittle guidence from the community when i get it.
Heres a picture of the co2 guage
 

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Mudminnow

I don't think your low CO2 is causing the yellow leaves with brown spots in your plants. That is caused by age (old leaves), stress, or nutrient deficiencies.

It is completely possible to grow many species of aquatic plants without injected CO2. Just look into how to set up a low tech tank. But, if you want to add CO2, there are even more plants you can grow, your plants will grow faster and denser, and you can get away with adding more light.

If you're looking for a regulator, look for one that is dual stage (not to be confused with dual gauge). Here is a good video on setting up a CO2 system: Optimizing CO2 in a planted tank - YouTube .
 
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ZeroSum

What nutrient defficienies would they be? I used API leaf zone and another full spectrum fertilizer. I alternate the use of each every other week so i dont overdose the tank. Would you reccomend something diffrent?
 
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Mudminnow

I've not used the fertilizer you're using, but I don't have any reason to think it wouldn't work. I'm not great at identifying specific deficiencies, and what you are describing might not even be the result of a deficiency. It's just one possibility. Nevertheless, I don't think it would hurt to try and increase your dosing a little to see if that helps. If it doesn't seem to help, you could always step it back down.

I've personally tried dosing 2-3X the recommended doses in a tank to see what would happen, and, as far as I could tell, nothing did. So, I think it is harder to overdose than most people think.
 
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