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Old 06/12/2021, 07:43 PM   #1
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Join Date: Jun 2021
Location: Seattle area
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Keep CO2 setup?

I am converting my high tech 150 gallon planted freshwater tank to saltwater (never tried salt before). I read something about CA reactors. Should I keep my CO2 tank/regulator/solenoid in the small chance that I might need it at some point, or is CA reactor only for really large reef tanks?


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Old 06/12/2021, 08:12 PM   #2
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Location: Spokane WA
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I found that simple hand-dosing calcium ( ie you add it to your topoff water) fully sufficient for a wildly growing 50 gallon reef, and it probably could have handled a 75. It's all, however, dependent on how MUCH stony coral you have and of what type. I was growing hammer, which is real hungry and grows heavy skeleton (calcium),


Salinity 1.024-6; alkalinity 8.3-9.3 on KH scale; calcium 420; magnesium 1300, temp 78-80, nitrate .2. Ammonia 0. No filters: lps tank. Alk and cal won't rise if mg is low.

Current Tank Info: 105g AquaVim wedge, royal gramma, ocellaris clown pair, yellow watchman, 100 microceriths, 25 tiny hermits, a 4" conch, 1" nassarius, recovering from 2 year hiatus with daily water change of 10%.
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Old 07/30/2021, 04:50 PM   #3
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Good question on if a fw co2 setup will also work with a ca reactor. I'm sure the tank would, but my guess is that the other parts would not be suited.

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Old 07/31/2021, 10:25 AM   #4
Michael Hoaster
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Yes, your CO2 setup will work with a calcium reactor. So, depending on what you end up doing, corals-wise, a calcium reactor can be a great option.

As many naturalists and environmentalists have suggested, we should set aside our arrogance,
our desire to conquer and control everything, and walk hand in hand with Mother Nature. -Walter Adey

Current Tank Info: 180g Seagrass Sandbar Lagoon, START DATE November 28, 2018
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Old 08/01/2021, 01:11 PM   #5
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I'd keep it. A calcium reactor can be a great piece on a reef setup once it's dialed in.
Great on high demand systems when dosing manually gets to be too much.

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