If it's not tied properly, take it out and cook it.

If you want to create a good scene and don't want to destroy it, you have to try using activated carbon.

Don't tell me you don't have a filter, and don't tell me that you only open it regularly for a few hours every day.

If you want to clean the water, but don't want to get the rhododendron roots out, you can only open the filter 24 hours a day and put activated carbon in the filter tank. If the effect is gone, continue to change the activated carbon, change the water regularly and change a lot of water.

If it is estimated that the tank is not big, it may not be clear for a month, but it will always improve.

It doesn't matter to raise fish, but the ornamental value will be discounted.

Besides, I doubt if you have that kind of semi-rotten rhododendron root, otherwise the yellow water will be as bad as you described.