This way, you are saving electricity (even though LED lights do not use that much power anyways). What you can do however, and this is something that some people in the hobby do, is only turn on the light whenever you are near the aquarium. But what would be the point right? You want to be able to see your fish. This means that theoretically you could have an aquarium without light. The light is just for us to watch our fish, grow our live plants and make sure the tank is doing well and staying healthy. They can easily navigate and find their way without it. During this period the photosynthesis stops and contribute to the day and night cycle all plants have. Therefore it is important to turn your aquarium light off during the night. This means that my CO2 will run out way quicker when my lights are on 24 hours per day instead of the 10 hours they are running right now.Īlso, live plants need a period of darkness as well. I am running CO2 injection on one of my tanks, which only adds pressurized CO2 when the lights are on. This is an effective way to battle algae in your aquarium. Therefore, whenever you see algae, make sure to cut back on the amount of light. I thought the same but my aquarium was proof that the algae still thrive when there is too much light. You might think that having (fast growing) live plants in your aquarium will counter this problem. Especially when there is a lot of nutrients readily available. When I got back on Sunday evening, there was so much string algae in my aquarium! This is what happens when there is too much light.Īlgae will be able to out compete all live plants that you have in your aquarium. Personally, I have accidentally left my aquarium light on for a weekend. Check it out, it’s definitely worth it! Other effects too much aquarium light has on your tank Algae I recommend this simple timer that’s available on Amazon. If you do not already have a timer for your lights, make sure to get one! They are really affordable and will allow you to accurately control your lights without any effort. You will notice these symptoms soon enough, however there will be another problem that you will not be able to ignore much sooner. When you let this go long enough they might even die from their symptoms. When the fish have no “night” they will get stressed and display symptoms like lack of appetite, constant hiding and fighting each other. Remember that we are responsible.Ī big part of this is mimicking the day and night cycle. This is to give our fish the best possible conditions for them to live in. In an aquarium we always try to make the circumstances as natural as possible. Not turning off the light during the night for a longer period of time causes stress to all aquarium fish. Light during the night causes stress to aquarium fish My Favorite Fishtank Products to Make Life Easier.How many hours can you leave your light on per day.Other effects too much aquarium light has on your tank.Light during the night causes stress to aquarium fish.
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