Grodan Stonewool Delta Gro-Blocks & Big Mama dupe Hydrofarm's T5 replacement tubes offer

Hydrofarm's T5 replacement tubes offer HO light output at a great price

The exceptional physical properties of this perlite make it tops in the perlite world for adding porosity to soil and soilless mixes

Put the dry powdered product mixed with water or compost tea into each hole

They look like small ladybugs with black bodies and orange heads and tails

pH Combo Electrode Glass Body - Refillable Temp Sensor

Grodan Stonewool Delta Gro-Blocks & Big Mama dupe Hydrofarm's T5 replacement tubes offerGro Blocks are similar to a plant container. Need a 3 in pot? Then choose a 3 in Gro Block. Small plants can be fully grown in our larger Gro Blocks. Holes are perfect size for any 1. 5 in starter plug. Come in packs labeled with instructions. Big Mama is Grodan's largest block ever produced! Big enough to grow a large plant for its entire life. More than twice the amount of wool as our Hugo Block.