CO2 and macronutrients - need guidance
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CO2 and macronutrients - need guidance

This is a discussion on CO2 and macronutrients - need guidance within the Beginner Planted Aquarium forums, part of the Beginner Freshwater Aquarium category; --> Where is good source to buy macronutrients for a tank with pressurized CO2? What is the best "format" for the macronutrients? Liquids, powders, granular, ...

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CO2 and macronutrients - need guidance
Old 11-05-2011, 01:32 PM   #1
 
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CO2 and macronutrients - need guidance

Where is good source to buy macronutrients for a tank with pressurized CO2?
What is the best "format" for the macronutrients? Liquids, powders, granular, etc?

I'm taking the plunge to pressurized CO2 on one tank. I have the set-up ready to go, I just need to have my 10lb CO2 tank filled. I'm comfortable with the hardware aspect of CO2, it's the ferts that worry me! I'll be dosing with Flourish comprehensive for micronutrients and plan on using the EI dosing method, assuming I can get the macronutrient dosing figured out! I'm starting out very conservative on the CO2 levels - I'm actually starting the CO2 in a planted tank w/o fish until I get more comfortable with it.

Light levels will be in the medium to low range, anywhere from 20-40 micromoles of PAR at the substrate, depending on the exact spot in the tank that's being measured.
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Old 11-05-2011, 02:29 PM   #2
 
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Check out this site. It has all that is needed and is pretty cheap on the pricing.
Planted Aquarium Fertilizer - Main, Main, Dry Fertilizers, Dry Fertilizers,
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Old 11-05-2011, 09:58 PM   #3
 
yep thats where I get mine too. KNO2, H2KPO4, K2SO4, and CSM+B.
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Old 11-05-2011, 10:34 PM   #4
 
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Thanks folks, any other words of wisdom on "oops" to watch out for as a CO2 newbie?
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Old 11-05-2011, 11:06 PM   #5
 
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Quote:
Originally Posted by DKRST View Post
Thanks folks, any other words of wisdom on "oops" to watch out for as a CO2 newbie?
All I can tell ya is the fertilizers and those have been mentioned already. I know nothing about dosing C02 other then take it slow at first. A pressurized system is something I have wanted for awhile now just can not afford one
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Old 11-05-2011, 11:38 PM   #6
 
pressurized CO2 is very easy to use once you figure it out. Also its hard to kill fish with CO2, yeah it can be done but its like killing fish with a heater. They will be gasping at the surface long before they are close to dying.

With fertilizers start out with a standardized dosing regime. Give it at least a few weeks, if the plants are growing fine don't bother changing a thing. If anything seems 'abnormal' don't be afraid to tweak the fertilizer amounts.
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Old 11-06-2011, 11:00 AM   #7
 
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Sounds like good advice, thanks again.
I'll start slow, and I plan on using the fish behavior more than any pH meter or drop checker to tweak my CO2 levels. I have a Smith dual-stage regulator so I shouldn't have any of the end-of-tank CO2 dumps I have read about. I'll stop the CO2 at night (have a solenoid installed), and run an air pump to agitate the surface at night. My tank tends to get a surface scum quickly if I don't agitate the surface, but of course I don't want too much surface agitation when running the CO2! I'll be injecting in-line with my canister outflow.

Any other suggestions, please let me know.
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Old 11-06-2011, 03:45 PM   #8
 
You should be more then fine with all of that. My canister just ran out this morning, but I use a single stage regulator with a solenoid and ceramic diffusers. I've never worried about end of tank dumps and my tanks always go till empty. The bubble rate can increase a little on the end of tank dump, but on my regulator that feeds both a 20 and a 55 gallon. That increase isn't going to affect anything before the CO2 tank runs out. Fish are pretty oblivious to CO2 levels unless you get 35-45ppm, same goes with the pH fluxes you get morning to night.
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Old 11-09-2011, 06:22 PM   #9
 
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Planning on EI dosing?
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Old 11-10-2011, 08:49 AM   #10
 
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Quote:
Originally Posted by redchigh View Post
Planning on EI dosing?
That's my plan, although keeping with my 2x a week 60% water changes, I'm not certain if I need to modify the EI dosing in any way? Recommendations?
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