they usually only last a day, if that. The color issue might be due to fertilization, though. Most of mine come out with a violet purple colorWhen my tillys grow the flowers they bloom with no color and just seem to fall off and rot. Is this a lighting issue or moisture? I try to keep them from getting to wet.
Spanish moss is predominately yellow flowered, I believeBy no color do you mean pale, or green? I don't know any green flowered tillandsia (I don't know them all), except T. usenoides (spanish moss). Most are purple or blue. A nice red flowered one is T. albertiana.
I'd also suspect a nutrition issue, although if they are in a tank with frogs, it is hard to imagine what that could be. Usually more nutrition than most plants need in a frog tank.
I could see that leading to early rot, but no sure how it would effect actually flower color. Unless the actual bulb, or even spike, were being effected by some type of rotIf the viv is completely sealed, via, a glass top, without some air flow, this might be a reason too.
Looks green to me when it blooms in the greenhouse. Maybe yellow-green, I guess.Spanish moss is predominately yellow flowered, I believe
You mean T biflora? If so, I've been wanting to try that one myself for a while. Hook me up mang!Always variants on the 'typical' for any species, might well be a yellow one. Might want it, it is hard to find the flowers on spanish moss usually!
Another Tillandsia that might be worth trying in tanks is T. bicolor. I just got two from Ecuador this spring. Hopefully they will grow well. They look like small neoregelias, more than anything.