Quote Originally Posted by faithless
I had a similiar problem with too rich soil too early with 3 clones.
I repotted 2 of them in flushed soil and the third remained in the same soil though I flushed that too.

The one that didn't get repotted remains about 3-4 days ahead in growth, so flushing was probably more efficient than repotting.
I didn't notice that this plant was leading before the repotting, though of course other conditions may have caused it to take the lead, though it seems doubtful to me.

I personally thought he should raise the lights, merely because his plants are sickly and need to recover from stress.

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You may have, BioBizz Light Mix isn't, so no. Seems unlikely to be a light intensity problem. SuperThrive is doing this.