Whether starting your seeds and cuttings in A-OK Starters, Macroplugs, or Mini-Blocks it is a good idea to transplant into a 3” or 4” block.
You know it’s time to transplant to the Gro-Block when roots coming out of the starter are about 1” long.
Just place your Mini-Block on top of the 3” or 4” block without the hole, or your Macroplug/A-OK into the 3” or 4” block with the hole and watch your plant flourish.
- Gro-Blocks : Delta 6.5 Small 4"
- Sizes in inches : 4x4x2½
- Hole sizes available : Big hole
- Blocks/Package : 6
- Blocks/Case : 216
216 x Grodan GRO-BLOCKS DELTA 4X4X2.5''
After your purchase, the items are subject to the respective manufacturer’s warranty policy.
These policies can be found on the original manufacturer’s website or by contacting them.
Indoor Growing Canada is not responsible for replacing, repairing or any costs associated with your item while under warranty.
Indoor Growing Canada will assist you in your warranty claim by helping you coordinate with the original manufacturer.