如何有效地对抗水族箱中的藻类？

Try with granulated peat in a filter, or a peat cannon, you will easily get approx ph 5 from it, then you will mix the obtained peat in appropriate amounts with tap water and ready water. The cinnamon bark itself, the leaves or the alder cones will not come off your pH that much. But first of all, you need to check the pH of your water first. This is the safest way if there are fish and plants.

There is no such thing as liquid CO2 :) Algae are not directly combated with chemicals. If you do not want algae, you need to provide the right amount of micro and macro elements for your aquarium, which will result in plant growth and algae disappearance. The ratio of phosphorus to nitrogen is crucial, which should be around 1:16. There must be nothing missing in the water, since you are giving CO2, you must also take care of macro (N, K, Mg, P) and microelements (Fe + all the rest). The rule is simple - plants need a little bit of each ingredient to grow + the right amount of light and carbon for that. Algae grow in all conditions. The only way it will not grow is to provide good conditions for the plants. There are no shortcuts. I've been playing with this for years :). For this, of course, a water change, at least 20% once a week (I change 50% for CO2 and EI fertilization). As an ad hoc aid to combat algae (especially from stones), you can use hydrogen peroxide injected directly onto the algae, but be careful, some plants dislike this very much. Good luck

The only thing that commented above is that peat acidifies the water and some fish do not tolerate it. For example, the Burundian princesses would die and some cichlids. You can try to introduce herbivorous fish, because algae are also plants. You just need to protect more delicate plants and give the fish only a little plant food. You can also experiment with light because light also affects the growth of algae.

Clean the aquarium and feed the fish, meals that do not stain, take care of the fish and give regular meals

Humic compounds, which lower the pH of the water to 6.9, are effective in the fight against algae in the aquarium. Placed on the bottom, they will help to maintain the desired balance. If fish live in your aquarium, avoid the use of chemicals. Algae on the aquarium glass should be removed regularly by wiping the walls of the tank thoroughly.

For me it helped: When changing the water, you leave half the old one.

It is enough to clean it once and there will be no problem

To effectively deal with algae in the aquarium, several actions should be taken. Firstly, it is recommended to increase the number of plants in the aquarium, as competition for nutrients can help limit algae growth. It is also necessary to regularly trim the plants to remove algae from them. Additionally, consider adding more biological input to the filter to improve water quality. You may also consider using plant fertilizers to provide the necessary nutrients to the plants and strengthen their growth. Don't forget to regularly clean the filter and change the water in the aquarium. Controlling lighting by reducing the time the lamps are turned on can also help limit algae growth. Remember to carefully observe your aquarium and test the water composition regularly to adjust your actions to the specific conditions in your tank.