I just set up a planted 75 gallon with a co2 system. I have a few concerns that i was wondering if i could get some help. My Ph of my aquarium is 8.05, my ph monitor is set to a high of 8.15 and a low of 7.75 with a center value of 8. Now the co2 turns on when the ph is at or above 8.0. What I have noticed now is the the co2 comes on at 8.05 and cuts off at 7.75 however it take forever for it to come back up to 8.05 so the co2 is barely coming on if not ever. Is there something I should do to perfect this system? Again my aquarium water has a ph level of 8.05 after water conditioners and such. My kh is 89ppm (5) and my GH is 180ppm (9). Any suggestions would be greatly appreciated.
Also here is a list of the plant i added:
- giant hair grass
- 1 dwarf baby tears on a rock
- medium amazon sword
- medium green ozelot sword
- floating sensitive plant
- medium rotala indica
- green crypt
- red lotus
- lilaeopsis Mauritius
- jungle Val
- Anubias
Why is your ph so high? Neutral ph is 7, and when I am running CO2 I try to hold the ph to around 6.7 - 6.8.
Also get a drop checker. That is the only way to make sure you are getting enought co2 in the water.
Jim
Sorry i wrote that wrong. My Ph is naturally 7.8 , I set the high to 7.9 and the low to 7.6. I'm not sure how much PH fluctuation is actually safe? Also is it possible to have too much lighting? As for the co2 i currently have a drop checker, now it is reading not enough co2. However by the time the co2 comes on for 5 minutes it already reaches the low point and shuts off. Again my co2 is naturally between 7.7-7.8. Any ideas one what i should set my high and low points to? Also any pointers to keeping the list of plants i wrote bright green and healthy?
I did alot of reading on this and i havent heard anything about that...wont the change from 7.9 to 6.9 be harmfull to my fish? Also when i do a water change the water will jump back up to 7.9
You could mix half RO with tap and your Ph would stay about 6.6 or so RO is 5.1 ph tap 7.9.
Also if you dose heavy co2 while doing your water change that could eliminate any ph swings , I have a ph probe in the water (connected to my ph controller) so I know exactly what the ph is the whole time im doing the water change if the ph starts to go up I just stop adding water until it comes back down to where I want it.
Depends on what your KH is coming out of your tap though.
I'm pretty new to the co2 system, but everything I have read has been consistent with what Steve said. I would think you should gradually work your ph down so that your fish will have time to adjust
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