There are no blue RFAs. The blue you see is a white part on the RFA that looks blue due to blue leds. Look at them under white light and there is NO blue!
Spend a little time going through this excellent thread:
www.reef2reef.com
I got burned by this at a frag swap. I bought what was an amazing looking blue and red RFA only to get it home and find that it was mostly white. Live and learn...
Awesome, thanks for all the info. I do have some decent lighting, so I guess the white will show as blue. I use Hipargero 100 watt LED's, with the blue and violet settings at about 90%, while the whites are set at about 20%Search here and you'll find more than a few very good threads about RFAs. The third link in my signature below may be helpful.
They are fairly easy to keep. They have a tendency to gravitate to the edges of rocks where it meets the sand. I keep mine in PVC end caps that I can push down into the sand so they disappear and the RFA never moves.
They come in all kinds of colors and patterns. I'd suggest not going for the expensive ones at the start. After a while, they all start to look pretty cool. The really colorful ones tend to come from deeper water and the less colorful ones (off white, tan, brown, black and maybe a bit of green) tend to come form shallower water. Where they come from (deep or shallow) has no effect on how they will do in your tank.
There are very few RFAs that have blues or purples as colors. The photos you see of RFAs with blue is actually white under blue leds. This is true 99.99% of the time. There are lots of red, orange, and yellows in most RFAs. Mixed colors tend to cost more than single or 2 color ones.
They do better when fed occasionally. I use a turkey baster to feed mine. They get regular fish food maybe once a week and something more 'substantial' every 2 or tree weeks... like cut up silver sides or cut up shrimp (I can collect small shrimp locally). But they do just fine using photosynthesis.
That sounds like it would be very cool! If you set that up, I would love to see pics.
Awesome! Thank you so much.
I anm not experience enough or see enough RFA to say about blue but there is purple RFA color.
That is a neat looking one!
Thanks, and yeah, I think I am going to. My only concern really is about how nems like to wonder. But from I am am reading on here their sting is very minimal
Obviously, everyone has different experiences, but my experience with mine was that it stayed put. It picked its spot on day one and didn't move from it!
Perfect! Thanks again. I will post pics when I get one.
This is very easy and should look very cool. Just be diligent and ask whoever you are buying from, where the RFAs come from. I had 5 out of 6 from Brazil die in the first 2 weeks!
Consider putting them in PVC end caps that can then be pushed down in the sand. I've been doing this for more than 5 years and it's been 98% perfect for keeping them in place.
