Does this work in a lettuce grow farmstand? the root riot plugs are smaller now and i wanted something with a better fit.

I use them to grow lettuce in a hydroponic ebb and flow systems They work great

Are these Biodegradable?

Yes,Halatool Rockwool Grow Cubes are Biodegradable.This rockwool is very effective hydroponics supplies, made of high-quality basalt, centrifuged at high speed to form fibers after being melted at high temperature, and compressed into blocks through proprietary process, soft and even texture, good water absorption and strong air permeability, which is helpful to the growth of roots.All natural,can be Biodegradable.

Colour	200pcs
Plant or Animal Product Type	Hydroponic Plants
Brand	Halatool
Number of Pieces	4
Item Weight	281 g
Item dimensions L x W x H	25.9 x 13 x 10.2 Centimeters
UPC	619367245988
Size	1 in-4 sheets
Manufacturer	Halatool
Specific Product Use	Hydroponics
Product Dimensions	25.91 x 12.95 x 10.16 cm; 281.23 g
Item Height	4 Inches
Item Width	5.1 Inches
Are batteries included?	No

Halatool 1 Inch Garden Rockwool Stonewool Rockwool Grow Cubes Starter Plugs for Soilless Cultivation Clone Plants Hydroponics Germination Start (4 Sheets）

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