Alright guys!i finally moved the plant, and i think the soil is good now.The previous soil i used had something white in it..and i dont know what kind of soil it was, then i changed the soil, and i used orchids soil and it was even worse.I thought i can use any type of soil, but after i read more about venus fly traps, today i went to a garden shop, and asked for peat moss, and i got a small bag.I didn`t find perlite, but when i bought some catctus plants, on the surface of the soil, there were something that looks like perlite, and i mixed some of them with the soil.i cutted the flowers, because they started to turn black.I noticed, that there were little flyes coming from the terrarium, and when i repotted the plant there were very few roots...about 2 little strings.Will there grow more roots if i repotted it?The soil is now about 30cm-35cm deep.
Here you can see the things that looks like perlite.
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And here is the repotted plant
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