OK...I shall attempt to translate what you just told/asked me and then provide an answer...done!
It is still kind of hard to tell what the seeds are like using your diagram. If you could tell me what the length and width of one seed is in say, millimeters, it would be appreciated.
What exactly do you mean by the quoted passage below?
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Quote </td></tr><tr><td id="QUOTE">its looks to me like it wont get bigger cuz its been like that for a few days and seeds that used to be saller are same size as it is now, too[/QUOTE]<span id='postcolor'>
I'm not sure what you mean by this. Unless seeds swell with water (e.g. Mimosa seeds), seeds do not get bigger.
Peat would be a satisfactory germination medium as long as you transplant the seedlings when they start to develop true leaves (as opposed to cotyledon leaves) into a more appropriate medium, i.e., one that is better aerated and includes regular potting soil.
BTW, all peat is dead. By definition, peat is the partially decomposed remains of the inhabitants--usually mosses (the genus Sphagnum in our case)--of a bog. When growers refer to 'sphagnum,' what they mean is the dead, *undecomposed* strands of Sphagnum moss, which when decomposed is the primary constituent of peat. When growers speak of sphagnum, they usually mean dead sphagnum as opposed to live sphagnum, which is a less common soil amendment/topdressing among growers. 'Sphagnum' and 'long-fibered sphagnum' and 'long-strand sphagnum' are synonymous.
Chris