The aechmea is not a full sun plant and shouldn't be in too much direct sunlight. Bright light will make it more compact, with wider leaves, and lighter green color with less silver. Yours doesn't look like it was grown in very bright light, but the plant stops growing after it flowers so it might not if the bright light was recent.

The Tillandsia will like brighter light, the aechmea and the billbergia mostly shade, and the vriesea shade.

Google general bromeliad care but all of the cup plants should have their water emptied from time to time and dried out for a day or so. Also flush them thoroughly with lots of water from time to time.

Spray the tillandsia so it gets good and wet once or twice a week, and with diffuse liquid fertilizer every now and then to keep it happy. The other plants you have are all more heavy feeders compared to other bromeliads but still shouldn't get more than 1/4 or so of the recommended dose.

Hi everyone.

mushibu10 - As I live in a different country to you with a very different climate, I won't attempt to tell you what you should be doing with your plants.

You've asked a lot of questions in your post and I think the best approach is to refer you to the best website to answer your questions and that's http://fcbs.org/

This site could best be described as the "Brom Grower's Bible" and it's a wealth of information which I'm sure will answer all of your questions much better than I can.

On the home page down toward the bottom is a heading titled "Bromeliad Information" (coloured orange). Select that and when the Bromeliad Information screen appears select the second heading down called "Culture". This will answer all of your questions.

All the best, Nev.