Ooh, finally a dose for the flowers!! - gonna try the tea then
People usually couldn't feel fewer than 3 of a strong batch, 5-6 of a normal batch or 8-10 of a super weak batch. Pink and white lotus were maybe 1/2-3/4 the potency of blue lotus, and they each had unique properties with extraction, if you're curious I can try to find my notes on it but this was maybe 4 years ago at this point that I was doing this research. Trying to recall off the dome, I believe blue lotus boiled down into resin better than pink/white did, but ethanolic extractions of pink and white required far fewer flowers, and when I tested it with petals vs. centers, I didn't find a huge difference personally but some others that I had in the testing pool certainly believed the centers to be less potent. As far as smoking this shit goes, it was a totally different ball game though. Smoked pink and white seemed significantly stronger than blue, but smoked opium of blue seemed to hit harder, I could never seem to get the feelings of smoked pink/white lotus opium past a certain ceiling whereas blue lotus opium when vaporized properly can just keep escalating and escalating and escalating until you nod off into a strange visionary trance-like state.
Edit: Two things actually. First, I have absolutely no clue how safe high doses of lotus are and I don't really want to encourage somebody into binge smoking blue lotus opium in an attempt to pursue that visionary state I used to visit back in my ethnobotanical madman days, and possibly experience adverse effects. I was always fine with that experience, but I'm also notorious at this point for consistently benefiting from high dose drug experiences of many kinds. The other note that I want to make is that I'm sure this comment elucidated something obvious, and that's that there appears to be much more in common between pink and white lotus than there is between either of those two and blue lotus. Nelumbo nucifera and Nymphaea caerulea both exhibit blue, pink and white varieties too, and other than potency I didn't find a big difference between the two plants, I suspect that they must have some shared phytochemistry going on. Batches of N. nucifera were consistently a tiny bit weaker than those from N. caerulea, and the nucifera samples all had a much milder, more pleasant taste to them. I'm damn near positive that I could distinguish them by taste in a blinded test.
Whereas the dosages mentioned in the beginning of this comment are 3, 5-6 and 8-10 flowerheads, that is thinking of the most common flower I ran into, Nymphaea caerulea. For Nelumbo nucifera, I would consider adding 2-3 flowers to them, meaning that a low dose would be 5-6, a moderate dose would be 7-9, and a large dose would be 10 to maybe 14 or so, with all of this varying heavily based on individual batch variance. Few drugs I've ever touched have varied as much in potency batch to batch when compared to lotus flowers.