LFS sold me limestone 'slate', after advice
Tank has just finished cycling.
Substrate is Flourite and Aquabasis with 'Slate' hardscape.
Medium planting with Crypts., Hygro., Rotala., Aponogeton and Lilaeopsis.
Low light with pressurised CO2 and full Seachem lineup using the EI method.
No livestock, but have a Betta waiting to be picked up from the breeder.
I brought slate rock to use as retaining walls in my hardscape. Following the installation of my CO2 set up, I noticed KH increasing from ~4deg to ~9deg between water changes. Tested a piece of rock with API Nitrate reagent, and it immediately started fizzing. So the rock is the known culprit for this KH increase.
My main concern I believe will be trying to not gas my fish, as the co2 would need to be adjusted daily.
1. Painstakingly spoon out my substrate and plants, remove the rock from the tank.
2. Put together a PID controller that controls the CO2 injection according to a pH probe and a known increase in KH between water changes.
3. Wing it, keep monitoring and see what happens
What are the thoughts from forum members?