How many hours should I leave my aquarium light (finnex stingray) on? I'm getting brown algae all over everything the light touches, so I've backed off the light to 4 hours/day, but is that enough to sustain my java fern and anubias? I'm also dosing .25ml Thrive once a week and performing 1-2 50% water changes per week. My tank has been cycled for about 7 weeks with 0 ammonia, 0 nitrites, and 5 nitrates. My nerite is pretty good at cleaning the algae off the glass and driftwood, but doesn't touch the plants. Is there something I can put in a 5.5 gallon with a betta and nerite that will clean the plants?
Brown Algae Vs Light?
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Brown algae is diatoms most likely and will abate with time, it could take months. Keeping the lights under 7 hrs will help and your nerite should eat some of it...it just takes time.
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