135G make any sense to try CO2 with it? - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 01-28-2014, 12:16 PM Thread Starter
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135G make any sense to try CO2 with it?

I finished setting up my 135G (links to pictures below) earlier this month. I haven't worked with anything besides Metricide 14 for carbon. Would it make any sense to add a CO2 system to this setup?

Tank is 36x24x36 inches. I have a 40G regular saltwater style sump with a bubble trap, refugium with divider, and a final short divider before the return pump. I am covering 50% of it with a glass lid. (I could work something to seal it off if that would make sense. (with a finnex planted + and a variety of plants in a small amount of substrate including some java moss)

Lights: 2 36" Finnex planted + on the front and back lid. 2 XB BMLs a 10000k and 6300k.

Floramax substrate and some rocks and driftwood with of course assorted plants.

I use a eshopps hang on back overflow box which runs nearly flawlessly. My Rio 20HF is a little noisy but it works for now.

I also run a tetra whisper hang on back for additional filtration and flow along with 2 aqua clear powerheads.

Anyway, would it make sense to add a CO2 system. I've read some about it, that sumps are heavy CO2 sinks as well as hang on back filters.

Would I be able to go with an ada CO2 advanced system with a adapter, regulator and a 20lb or 100lb CO2 tank, or is there anything else I would need? Someone is selling one with a solenoid, which to my understanding is just a controller, but it seems I would still want to add a PH probe and attach it to a controller( BMLs is coming out soon).

Thoughts? Assistance?

Should I check to see if a local shop would fill 100lb tanks first? I figure a 100lb tank should last me at least a year with this size tank even with the CO2 loss, correct?

Or should I just scrap the idea and stick with medium tech (ferts, and metricide 14).

Thank you!


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post #2 of 4 (permalink) Old 01-28-2014, 12:18 PM Thread Starter
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Also I currently run the BMLs at 100% as I didn't get the manual dimmer as I would figure that I would wait for the controller.

My plan is to run the Finnex planted + for 8-9 hours a day, and have the BMLs slowly scale up over the course of 15 hours, with a peak in the after noon, and have it slowly scale during the entire morning hours at a low %.


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post #3 of 4 (permalink) Old 01-28-2014, 03:18 PM
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much depends on how convenient you want things. For me, I have one tank with a CO2 controller, one with just a timer for lights and cO2. I would not invest in the controller if redoing. Just not that much help. Convenient but still bares watching and not a real need. I consider a sloenoid which is more a switch or gate rather than a controller, to be needed.
My thoughts on tanks may be different than yours. A 50lb is all I want to wrestle and I find 20 is long lasting enough on my 125. Much less trouble to haul through the house, load in the car, etc.
I do recommend pressure CO2 but admit to it being expensive.
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post #4 of 4 (permalink) Old 01-28-2014, 03:22 PM
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I'm not expert, but from the little experience I have I can tell you that running the XB BMLs at 100% will provide so many Ámols to your tank that without CO2 you will have more algae than plants I run a single not-XB BML on my 120p (48"x18x18) and on 100% I get at surface level 450 Ámols , at 9" 140 Ámols , at substrate level 70 Ámols. I run mine at 75% max. With two XBs... you probably have 150 Ámols at substrate level.

I initially thought that I must have a pH probe to shutdown my CO2. Soon I realized that I basically had to start it 3 hours before lights on and then switch it off, when my lights go off again. This gives my a 1 pH drop. I kind of needed the probe to understand the timing, but now I run the CO2 with a timer and have the probe only as an emergency measure (shutoff is pH drops more than 1.25 points, just in case).

A 100 lbs tank sounds like overkill. I have a 5 lbs tank and I'm using it for 4 months now. Judging from the weight it's probably nearing being empty. In addition I bought a 20 lbs tank, which I can swap out once the 5 lbs is empty and then swap them as needed. I probably should have gotten another 5lbs tank, because they last a long time and are easier to carry and transport.

Take everything with a grain of salt. I really don't know what I'm talking about
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