Crashed my PH - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 03-15-2003, 04:26 PM Thread Starter
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I just start my 20 gallon planted tank with DIY CO2 and crashed my PH down to 6 or below. The KH was low at 2 and the GH was almost zero. I have been adding baking soda to increase the KH and PH and now have it close to 6.8. My GH still seems low. Is that normal and what should I do about it. I did not think I could cause this crash with a DIY 2 liter yeast reactor.
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post #2 of 5 (permalink) Old 03-15-2003, 06:44 PM
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What were all your tank water parameters before you did the CO2? What are your tap water parameters?

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37 gallon AGA Black Seal, Emperor 400, Ebo Jager 200 W, 100% Flourite Substrate, 2x55 Watt AH Supply PC Lighting (5300K & 6400K) @ ~3.4 WPG, High-Pressure CO2.
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post #3 of 5 (permalink) Old 03-15-2003, 07:23 PM Thread Starter
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Tap water KH is 2 and GH is 1. By adding baking soda I have my KH up to 6 and PH at around 6.7. GH is still very low. What should I do? Also how do you slow down a yeast reactor?
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post #4 of 5 (permalink) Old 03-15-2003, 07:33 PM
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Quote:
Originally Posted by williamrick
Also how do you slow down a yeast reactor?

Stop using it and switch to precisely-controlled high-pressure CO2 for about $120. Read:

https://www.plantedtank.net/forum/viewtopic.php?t=1164

https://www.plantedtank.net/forum/viewtopic.php?t=1063

https://www.plantedtank.net/forum/viewtopic.php?t=1171[/url]

Sincerely,
STAT 007
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37 gallon AGA Black Seal, Emperor 400, Ebo Jager 200 W, 100% Flourite Substrate, 2x55 Watt AH Supply PC Lighting (5300K & 6400K) @ ~3.4 WPG, High-Pressure CO2.
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post #5 of 5 (permalink) Old 03-16-2003, 01:30 AM
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How to slow down the yeast depends on how you are adding it to the tank.

If you have it in a heated bucket, turn off the heat. Let it run at room temp. Add back heat to adjust the bubbles.

Use a smaller bottle, a gallon jug can be too much, depending on your water. Or just put less sugar in the mix you use.

Adjust the difuser or reactor to be less efficient. If it is a Hagen/Nutrafin diffuser, move the output to a higher level so the bubble travels on less than the full ramp system. If it is a DIY vortex or gravel tube, take the sponge out of the end to let some bubbles escape. If it is an inline reactor, um, I don't know how you could work it, better just change the mix.

In all of these, it is better to have a bubble counter in the system so you can monitor how things are going.
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