Without the form its kinda hard to tell exactly. But if i may go out on limb...

If you keep the cubes in constant water, it may be due to over watering/not getting enough oxygen. Those cubes can hold a lot of water and lockout oxygen.

pH of water? Are you adding nutes? Tap water, city, filtered? After my germination i only used pure tap water and added calmag for the first two weeks. The slowly bumped up the PPM until the plants looked fat and happy.

Also did you soak your cubes in pH'd water for a day or so. Those things tend to be pretty acidic.

Again, those are just the first things to pop in my head.
MichiganAero Reviewed by MichiganAero on . veg help needed / Where am I screwing up? I have several seedlings going. There were all started in peat pods. All of them were started in germ at the same time. Some popped and started to grow right away, and others are just now starting to pop. I have moved all the ones that have popped from the shallow peat pan to putting the peat into the center of 4 inch xx and moved them all to a 6 inch deep pan. All the while, these have been under a regular incandescent light. I understand why they are longish, and thin because of this Rating: 5