Hi there,
Plants grow on a daily basis. Not to mention variation in strains, so each require different amounts of water. No two people are the same, the same goes for your plants. Just make sure when you're watering you saturate the whole medium and give it enough time to dry out before the next watering. Check the weight of your pots when just watered, and then a day or two later. They should be much lighter an this will tell you that they need/want more. Along with possibly poking your finger into the soil, if its dry the first 2 inches or so down, you'd be good to water. Remember, less is more as you can always add a little bit more water if you need but you can't take away. Hope this helps, Good luck!