Hi
@Rikikush these small burns are effects of changes in ph. fertilizers tend to lower the pH of the water slightly, when irrigating with normal water it has a higher PH. it is these variations that affect it a little. try to get a PH reader pen, on the aliexpress website you can get one for 20 $ -30 $, it is a great help. besides, your plant looks great to me. good luck mate 🙏👍