General HydroponicsRapid Rooter, Starter Plug for Seeds or Cuttings, Great for Soil or Hydroponics Growing System, 50 Plugs

I use these in my Lettuce Grow with great success. I have tried several other seed starter plugs in the past but i keep coming back to these. They are a touch more expensive that some other brands but these seed starters do not mold, nor to they attract nearly as many fruit flies as some other products i have used. I assumes that most hydroponic systems have different sizes so i cannot speak to that but for my purposes theses are the best!I keep the remainders inteh same bag they were shipped in and I have never had issues with mold anything like that. I can can attest that I store them in a greenhouse and in my garage both of which can get stuffy and humid, and i still can rely on them even after opening the package for a year or even two. Great product.

Have bought these 2-3 times already and will always use for seedlings

I've bought the General Hydroponics Rapid Rooter Starter Plugs multiple times, and they work wonderfully with my hydroponics setup. They consistently encourage fast, healthy root growth and are super easy to use. Great quality and value—highly recommend!

great for autos and cloning photo fems.

These fit nicely in my aeroponic tower garden cups and were easy to insert seeds with a long tweezer. They are slightly moist in the packaging. They had good reviews and being a first time grower in a tower garden I went with items with the best quality to insure success. I will update when seedlings emerge.

Work good. Easy to use. Good value.

Well both of my package i got, has horse hair parasites in them! but besides that there great.

Work like they should love them use them all the time