looking very well, congrats! depending on your budget and your priorities really...
Always I would recommend Air pots for plants - look them up, they will increase your yield and this was proven.
You need a fan to move the air and make the stems stronger.
I would recommend a small extractor fan connected to a carbon filter. This will eliminate any unwanted smells and also suck out the evaporated water. As you know, cannabis is hydrophilic, loves water in large quantities, therefore you will need air movement and extracting power for a good grow and now you can get them for different sizes tents.
Get a small pH tester, the cheep one is fine. In case any problems, start by checking ph of run off water.
Have a spray that you can fill with water and spray daily your plants (but make sure to be careful with the light and electric installation)
If you feel more confident or adventurous, get a scrog net also.
Have good quality (organic imo) soil and nutrients.
Good luck!