Sanguinea germinated easily for me. I got them probably 2 or 3 weeks after they were harvested though. Anyway, mixed up some 5:2:2 peat/perlite/vermiculite, and threw it in a giant bowl-shaped pot (14" I think). I had a ton of seed lol. In fact, you seem to have gotten yours from the same source. Anyway, I put said bowl in a tank where it was very humid, but the air was stale. Admittedly, the lighting in the tank was way too dim, and I had to manually turn it on, so they only got about 8 hrs of light a day. Despite these terrible conditions, I had a good number pop up within about 3-4 weeks.
Just keep em wet.