You can refer to this article, I think it is okay.
In my opinion, you changed the water too frequently. You should only change the water if the water is dirty or bad. When you change the water, you should never throw away all the old water, but retain 1/2 of the old water because lucky bamboo plants are sensitive to water quality change. The ultimate solution is - do not throw away the old water, but let it evaporate until you think the water is insufficient, then add some new water to it. It is better to use distilled water with this approach. Add fresh water every 3 to 4 weeks. Patience is a virtue! (You can also use chlorinated tap water, which is sterile, but remember to let it stand for 1 night before use.)
Also, you should have washed away any dirt in the roots right after you bought it from the store.
And although this is not referenced, most of my local people suggest putting 1 or 2 iron nails into the water. Trust it or not.
Check out what type of light tube it is - if it is hot, it will lead to yellowing of the leaves. Bamboo plants like indirect light.