I had leaves look like that just before nute burn when I did a mini hydro. You keep it outside? I reckon it's quite humid where you are. Those chubby leaves look like they're transpiring a lot of water. You don't have to water your plant daily. If it isn't drawing up more than say 60% of the moisture in the soil then you should miss a day. Those leaves should be a little more erect than that. Flush and leave 24-48hrs I would. Then go back to bloom feed and water 700mL-1L.