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I'm fighting with this algae the whole month, please help (photos.app.goo.gl)

submitted 3 weeks ago by [email protected] to c/[email protected]

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It suddenly appeared and took over most of the aquarium floor and wrapped around some plants too. It looks terrible and no matter how much I change the water and vacuum the aquarium, it comes back after a couple of days.

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[–] [email protected] 1 points 3 weeks ago

Thanks. I am honestly impressed, never considered this could not be algae.

Light wise, I've been using the night light (blue lights) throughout the day for a week, it looks like it halted growth but I'm not sure.

The nutrient input is probably over feeding. I honestly don't even think I give my fish too much food, just a pinch in the morning, but they seem not interested in the food and simply don't eat it all, so most sink down and stay there. So maybe I should change the food type? Not sure. Also definitely feed less.

Is this harmful for the fish? I just had 3 little one born tonight and I'm worried about their health and all other fish too.

I've been thinking to do a remake in my tank especially the substrate that I don't like so much, want to replace with sand, so I could actually use the opportunity and completely empty the tank except for the fish and water, get a better filter, leave it like that for a week and then start over. Is this a good idea?

Thanks all for all your insights!