Zodiak246 Posted October 21, 2022 Share Posted October 21, 2022 Can I leave grow lights on 24/7 to make green water? will leaving it on 24/7 kill the green water? Link to comment Share on other sites More sharing options...
T. Payne Posted October 22, 2022 Share Posted October 22, 2022 Yes, you can leave the lights on and no, it will not kill the green water. I would start off with aquarium water in the container to make sure there is nutrients in there, maybe even some water from a water change. Link to comment Share on other sites More sharing options...
modified lung Posted October 22, 2022 Share Posted October 22, 2022 You can leave the lights on 24/7. There aren't any negative effects as far as I know but you don't get much more growth leaving them on for 24 hours compared to 12 hours. I still leave mine on 24/7 because I forget to turn them on some mornings otherwise. Link to comment Share on other sites More sharing options...
rockfisher Posted October 22, 2022 Share Posted October 22, 2022 I would not leave them on 24/7. Algae still need rest time to regenerate. So a short break of 3-5 hours would probably be beneficial. That said if you have to leave it on it won’t hurt that much. Link to comment Share on other sites More sharing options...
nabokovfan87 Posted October 22, 2022 Share Posted October 22, 2022 On 10/21/2022 at 7:22 PM, modified lung said: You can leave the lights on 24/7. There aren't any negative effects as far as I know but you don't get much more growth leaving them on for 24 hours compared to 12 hours. I still leave mine on 24/7 because I forget to turn them on some mornings otherwise. Would it be easier / quicker by using the bottle like that in the sun? Direct or indirect, maybe a windowsill or something.... That what it made me think of. Link to comment Share on other sites More sharing options...
modified lung Posted October 22, 2022 Share Posted October 22, 2022 On 10/21/2022 at 7:50 PM, nabokovfan87 said: Would it be easier / quicker by using the bottle like that in the sun? Direct or indirect, maybe a windowsill or something.... That what it made me think of. Yeah. I don't have any good windows that get enough direct sunlight though. Except for that weird closet with the big windows but it gets over 90°F in there. Link to comment Share on other sites More sharing options...
TheSwissAquarist Posted October 22, 2022 Share Posted October 22, 2022 @KittenFishMomand @TOtrees might have something to add. Link to comment Share on other sites More sharing options...
KittenFishMom Posted October 22, 2022 Share Posted October 22, 2022 I accidentally grew green water in one of the cut off clear gallon jugs I had under a plant light I was using to grow out water plants. Because the containers were so small, I didn't want to burn the plants with fertilizer, so every so often I would give them 1 or 2 betta beads or a tiny pinch of fish food. I took the plants out of a container to put in a tank. I just left the jug of plant water in the jug. Without the plant to take up the nutrients, the water went green. Link to comment Share on other sites More sharing options...
Dkshadowwolf Posted October 24, 2022 Share Posted October 24, 2022 I have successfully grown green water with just having the light on for 10 hrs ( on a timer). I started culturing daphnia out side in 5 gallon buckets and was using the green water to feed them. I quickly learned that the 3 soda bottle size cultures of green was growing inside wasn’t close to being enough. Now I have a 30 gallon plastic garbage can near my garden. I just use the waste water from water changes and add few garden scraps. Much easier than growing it inside and I have more then I need to feed six 5 gallon bucket’s of daphnia spread throughout my backyard. Link to comment Share on other sites More sharing options...
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