I would toss those. Blood rings are caused most often by bacteria killing the embryo. I left in a blood ring egg once to give it time when I was inexperienced. All the eggs next to it died because the bacteria spread. Never again will I leave in a blood ring.Well I did my day 7 candle tonight, with mixed results. :/ RIR/EE - 3 of 3 have strong bouncy little kidney beans with eyedot. Lav Orp - 11 of 13 showing development. Some have very visible embryos others I could only see the veining. Guess the babies were hiding in those. The last 2 appear to have blood rings, but will leave them for now just to be positive. So not bad at all on those. SFH - Only 4 of 12 showing any veining and it looks really strange. Maybe because the air cells are still really loose and sloshy. The other 8 all look to be clears. Again, I'm leaving them all just to be positive. The air cells on the Lav Orp and EE look to be right about where they should be so far according to the chart. So for now will keep humidity at the 30-40% I've had it at. Here are some pics of the suspected blood ring ones.