Little white bumps on clones but no roots?

I have a clone that’s shown signs of roots for a week. Little white bumps about 15 of them.Nothing seams to happen. All my other strains show the white bumps then immediately go to roots the next day or two.
Any idea why this is happening? There in a bubble cloner I haven’t added anything but water and a heat mat under. Thx.

Some strains are harder to root than others. Just give it more time

Give it another day or two, maybe even 3. How many days has it been?

MoreSessLessStress said:

Give it another day or two, maybe even 3. How many days has it been?

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8 days,maybe because its very skinny?The strain is sativa.

Those white bumps will be the roots.

8 days is too soon. Personally, in my experience, my clones have roots at the 10 day mark. Those bumps will become roots just make sure you keep them covered and whatever you are growing them in, usually rock wool, tight against the stem.

will tuff it out a few more days. Clone was cut on February 24. The bumps took about a week to show up.