Work from the top of the tank downward. This way, algae will sink to the bottom. This makes it easier to remove from the water. If you can’t find an algae scrubber, any scrubbing device with a rough surface will work. In rare cases, you may need to use a razor blade to remove very stuck-on algae. If you are using a razor blade, hold it at a 45 degree angle to remove algae from your tank.
Most water treatments will need to be applied over the course of a few days to successfully remove algae.
If there are any plants near where you’re removing algae, you should protect them as well. Cover plants in a plastic tarp to keep them safe.
If you don’t have a cleaning pump, you can buy one online, borrow one from a friend, or rent one at a local hardware store. For small algae spots, you can simply place the solution in a spray bottle.
Install the strips along the side of the roof just below your roof’s ridge.
Floating plants, like lilies and lotus, provide shade that blocks sunlight. This can slow down algae growth. Plants that you submerge in water can also help fight algae. Go for plants like anacharis, hornwort and parrot’s feather. You can safely plant one bunch of six to seven submerged plants per two square feet of your pond.
The presence of algae usually comes down to how much nutrients are going in versus how much is going out. You have to find the right balance of how much food you’re adding and how many water changes you are doing.
Be careful when adding new fish to an existing tank. Ask at the pet store if a particular type of fish is safe for your tank given its existing inhabitants. Snails and crabs are also a good ideal. Ask your local pet store for the best species available for you. Also, take into account how many animals are in the aquarium and the intensity and duration of the light it receives daily. Remember that algae is a plant and that it needs light and nutrients to live.