The caladium looks like it could be Thai beauty, but it's usually a little more pink

agree on caladium - it'll pink up given more light. sev hours of early/late sun will do it.

anthurium looks like A. clarinervium

and philo (1st pic) looks like very old 'Xanadu' - to get that leggy you'll need like 7 years :) ? you can chop the cane below those stubby roots, let it air-dry for an hour or so and replant it. the base will produce new shoots.

both anturium and philo can use 1:1:1 medium bark/perlite/peaty mix (like African violet mix or cactus mix) - very fast draining, but retaining some moisture.

Thank you all for your help. Caladium Thai beauty have different variety's . is there any way to find out what kind of variety is this ? and about Anthurium and philodendron i searched this mentioned plants and A. clarinervium have a different flower than mine and Xanadu is a bigger plant than mine and it's leaves are different. and about potting mix i saw some people use only sandy or rocky soil like this picture

http://www.palmcentre.co.uk/prodimg/PXA_1_Zoom.jpg

can anyone give me some info about that ? Thanks for all your helps.

Caladium 'Thai Beauty' IS the name of the cultivar.

anthurium: obviously a juvenile plant. so leaves are not the same as on mature plant. at this stage of development sev types look the same: clarinervium, crystallinum, regale and magnificum. all but clarinervium have very large leaves. the veins on young seedlings are underdeveloped.

here's a pic of magnificum juvie

http://www.exoticrainforest.com/Anthurium%20magnificum%20%20pc.html

here you can conveniently see several with juvie pics at once

http://nisamertha.blogspot.sg/2012/09/daun-kuping-gajah-anthurium-crystallinum.html

pic of the flower would help a lot. what you showed is the pic of seeds. that's not enough to judge.

philo leaves on your pic look exactly like 'Xanadu'. there is some variance of course depending on culture. yours appears to be in a very sad condition.

https://www.bing.com/images/search?q=philodendron+%27xanadu%27&FORM=HDRSC2