That soil looks like a solid clod of clay, man!
My advice would be to get it into some light, fluffy, "soft" soil. The water should run right through it with hardly any delay. If the water pools at the top, then it's not draining properly and likely setting up a doomsday scenario for your clone.
And I'd also get it out of that terra cotta pot and into a plastic garden container with ample drainage holes. Start out with a 1 gallon….move to a 2 gallon…move to a 3 gallon and move to a 5 gallon…7 gallon…10 gallon…infinity!
The idea is to get the water to act like a piston and pull oxygen through the open soil.
Once you get the proper materials in order, then weigh the unwatered container and soil.
Water the clone in and then weigh the container again.
Wait a number of days until the soil is completely dry and matches the unwatered weight again.
When you do water, make sure you get a run-off through your drainage holes. It's extremely important….especially in a confined grow space where the air movement, temperature and humidity are likely not ideal. Do not allow the bottom of the container to sit in a puddle of water.
Hope this helps.
Good luck.