Hi guys. Sorry to bother you all again. Give her today 1.5lt she as picked up but probe saying she is dry and pot light and tray dry. Would it be safe to feed her any more tonight. Thanks.
.
Good advice on lifting the pot to tell when to water. The way that I tend to do it (especially after I transfer for flower into 8 gallon pots) is to stick my finger into the soil about two inches. If there is a hint of dampness, I don't water...if not, I water thoroughly and then remove water from the catch tray. If you don't get water in the tray, you aren't watering thoroughly.
One other issue that may develop with soil is little "highways" for the water to travel so you'll get water in the catch tray but you'll have dry pockets in the soil. The little dry spots don't develop good root systems. Try using a surfactant - I usually use something like aloe vera juice, wet betty or one or two drops of soap, etc. Aloe Vera juice is healthy for you as well as the plants so I'm pretty happy to add it. Also taking your time to water can be quite helpful. I'll put a part of the water into the pots just as soon as I get to the grow room. Then I'll, look them over, move lights, turn pots, whatever I think that I need to do and then I'll finish the majority of the watering; just another method to help get a thorough wetting of the soil.
As you progress during flower, your plant will tend to be quite a bit more thirsty than it had been. The techniques remain the same though.