I hope that you can help me, I keep tropical fish as a hobby and at the moment I’m trying to breed a species of catfish that will only breed at the beginning of the rainy season. The size of the tank that I want to try this on is a 2000L system. I’m trying to simulate the water conditions of the Amazon’s different river systems and seasons.
I need to monitor barometric pressure, temperature of water, tds and multiple pH samples of water. I need the computer to be able to alter the pH of the water by opening and shutting water valves depending on the reading’s of the probes that is altered by a rise or fall in barometric pressure to simulate wet and dry seasons.
I will be mixing RO water with tap water to get the desired pH for the fish. My tap water has a pH 8.0 – 8.4. I need to lower it to pH 5.5 –6.5 depending on season.