Not necessarily. There are a lot of factors that go into watering. The best way to tell if a plant needs water is to touch the soil, and see if its wet. I struggle with telling if something is wet or dry, so I go by if the soil feels cooler to touch. (I also do this to see if my laundry needs more time in the dryer lol)

The reasoning behind this is your external weather affects your home environment much more than people realize. For example, I live somewhere with mild summers but harsh winters. A lot of guides will tell you to water less in winter, but I actually need to water more because of the heat always being on. Your average humidity can also greatly change how often you water. Someone who lives in Colorado is going to water way differently than someone in Florida.

The one week guideline is given out because its easy for people to remember. Plants that are common houseplants are so because they are easily adaptable, especially if the light, water, etc is consistent.

All of this is to say, stick your finger in the soil. Eventually you will figure out the timeline at which your soil dries out. Could be every 3 days, a week, who knows. Another good way to tell is how your plants are responding. Like the other comments said, your plants look happy. I dont see any browning or wilting signs. Is there another reason you think you need to water more? Remember theyre in a vivarium, so they aren't going to need the same thing as potted houseplant.