Hi, just started this new hobby a month ago!
I have a cycled planted tank, abt 50L, with a mixed of guppies, cherry shrimps, ramhorn snails and 2 albino bristleback. I think i only need one for my tank size so if anyone wants the other feel free to msg me.bi confirmed its cycle as i tested the ammonia and nitrite levels are zero. nitrate levels are abt 20ppm.

Added the shrimps 2 weeks back and am not sure abt the water changes as i read that shrimps are very sensitive to water changes. i am abt to do my first water change for them.
Can anyone share what is a good way to do water change?
Do i really need to do preper the water in advance in a bucket, den add it in slow drop by drop?

Also, any supplements you would recommend me adding to the tank?

Thanks in advance!
bob