A few things. I'm not too sure about putting the lamp directly inside of the cage, along with the side-tank heater. This could make the enclosure too hot and dry, although from the picture they don't seem to be seeking out cool or moist places. Also, I'm sure other people would probably tell you not to use the rock water dish combo. It might be better to mist or pour water in one corner of the cage, creating a small moisture gradient/humid microclimate in the substrate for them to move into if they are too hot or dry. They are adults, and from my experience, adult roaches of most species usually eat far less than nymphs do, except for gravid females. I suggest just letting them do their thing for a while. If you take apart and redo their enclosure often, I think it's likely to just disturb them. I also don't think you need to bleach or clean anything with dish soap, it might be more likely to harm them with residual chemicals.
Also, make sure their cage is escape proof. I can't see the lid in the picture but babies could be escaping through the lid. Vaseline along the top inch inside of the walls helps. 👍