Betta Fish and Betta Fish Care - View Single Post - Algae in Betta tank
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post #6 of (permalink) Old 06-06-2019, 03:56 PM
bluesamphire's Avatar
Join Date: Nov 2018
Location: UK
Posts: 564
Here you go
This is a v basic intro.

Green algae comes in many forms, green fuzzy, green hair, green dot...

Good thing is that green algae doesn’t harm the fish or the water and is usually a sign of too much light and a lot of nutrients in the water.

Looking at your tank, i would do the following (because you don’t have any plants).
- increase the water changes a bit. Either change more water each time, or do more frequent changes. This will reduce the anount of nutrients in the water that is feeding the algae.
- reduce the amount of light. Pop a timer on the light socket, and limit the light to no more than 8 hours. Make sure no direct sunlight reaches the tank. If it is close to a window, consider moving the tank.
- use a cloth or sponge to wipe the algae out of the tank. Lots of people use algae scrapers, but they just scrape the glass and the algae drifts off into the water. It then settles like dust onto all the other surfaces. But if you take a microfibre cloth, and wipe up from the bottom of the glass, to the top, lift it out of the water, rinse it out, then repeat for another section of glass - then you are actually removing the algae.
- another option is to get a snail (i use nerite snails). For your size tank, a single snail would be enough. If you get too many snails, they can starve over time. They wander about getting the glass, the plants, the decorations, and all the nooks and crannies. Shrimp can do the same job, but they are less effective on the glass.

You may not need to do more than one or two of these things, but they will all help.
Different types of algae respond to different measures (snails don’t do well on green dot algae, because it sticks to the glass so strongly, and you do need to use an algae scraper for that), but they all need light and nutrients to thrive. So removing those will slow the growth dramatically.

70litre tank: mature setup; betta, purple rasboras, male guppies, amano and wood shrimp. Heavily planted.
22litre cube tank: (Tagawa); betta, yellow dwarf shrimp. Pond snails and 1 assassin. Heavily planted.
Midnight in the 57litre tank (Midnight) ember tetras, 1 amano, 1 ghost, 1 nerite, pond snails, 1 assassin, doing his thing. Heavily planted.
200litre tank; honey gourami, cherry barbs, green neons, otocinclus, nerites, pond snails, amano. Heavily planted.

Last edited by bluesamphire; 06-06-2019 at 04:00 PM.
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