<span style="color: black;">Some of you may know about my tanks pH issue I've been trying get under control for a few months now. I know many of you recommended kalk but I'm very concerned about dosing kalk into a 10g at the moment.</span>
<span style="color: black;">(If you are not having pH problems and think you can help with my question, skip the next paragraph. I only wrote it because I know people search our forums for help so I wanted this to be available.)</span>
<span style="color: black;">I continued searching for other methods to stabilize the pH, since it seems closely related to the tank inability to convert CO2 after the light turns off. At one point I even tried running a desk lamp to light a small amount of macro I had sitting in the back corner of the tank (failed attempt). I watched my pH drop to some harmful levels and almost lost a few coral frag so I went back to using chemicals to maintain it. One day I decided to open up the windows to get some fresh air in since I know that the CO2 build up in our home wouldn't help the tank. After one hour the pH began to climb at a faster rate than it normally would during the photo period which was great but it would still drop too low at night. After a couple weeks I decided to open up the windows at night and bingo my pH was stable for a full 24hr period for the first time.</span>
<span style="color: black;">Now here's where I need help. During this pH battle I added a Prism skimmer to the tank. I only added the skimmer to help oxygenate the water but it's performing far better at removing organic matter than I expected. Unfortunately unless I leave the windows open at night it's only injecting air that already too much CO2 for the pH to stabilize. I want to run the air intake outside if possible but I have concerns about the distance the hose will need to be and what can I use to filter the air coming in. I don't want to restrict the airflow to the point where the skimmers performance is affected. Can this be done with the Prism skimmer or and I out of luck?</span>
<span style="color: black;">(If you are not having pH problems and think you can help with my question, skip the next paragraph. I only wrote it because I know people search our forums for help so I wanted this to be available.)</span>
<span style="color: black;">I continued searching for other methods to stabilize the pH, since it seems closely related to the tank inability to convert CO2 after the light turns off. At one point I even tried running a desk lamp to light a small amount of macro I had sitting in the back corner of the tank (failed attempt). I watched my pH drop to some harmful levels and almost lost a few coral frag so I went back to using chemicals to maintain it. One day I decided to open up the windows to get some fresh air in since I know that the CO2 build up in our home wouldn't help the tank. After one hour the pH began to climb at a faster rate than it normally would during the photo period which was great but it would still drop too low at night. After a couple weeks I decided to open up the windows at night and bingo my pH was stable for a full 24hr period for the first time.</span>
<span style="color: black;">Now here's where I need help. During this pH battle I added a Prism skimmer to the tank. I only added the skimmer to help oxygenate the water but it's performing far better at removing organic matter than I expected. Unfortunately unless I leave the windows open at night it's only injecting air that already too much CO2 for the pH to stabilize. I want to run the air intake outside if possible but I have concerns about the distance the hose will need to be and what can I use to filter the air coming in. I don't want to restrict the airflow to the point where the skimmers performance is affected. Can this be done with the Prism skimmer or and I out of luck?</span>
