Thrush in Frogs?

I have read through a lot of information regarding thrush here and other places. My horses soles look white, but his feet are white ?!? (Really I'm sorry if this sounds really dumb.) He doesn't limp or have sensitive feet and his soles are pretty firm, not spongy. His frogs, however, are shredded. Now, I've read that horses shed their frogs naturally, that frogs can be infected with thrush and cause them to shred and I don't really know the difference between the too so I thought you may be able to help. Oh and I'm treating him for thrush just in case. Didn't think it could hurt if he didn't have it. Just purchased some (green) Thrush medicine and applied it after scrubbing soles and frog with Dawn dish soap. Like I said the horse doesn't limp or have sensitive feet. I attached the pics, hopefully they come out alright. Any suggestions. I'm a little nervous about trimming his frogs.

I think his feet look fine. Be careful with the thrush treatment, sometimes it can do more harm than good. Especially if there is no thrush. You would be better off keeping a spray bottle of apple cider vinegar and spraying the soles and frog every time you clean the feet. The best cure is air. Keep the feet clean and you shouldn't have any problems. When my girls get a flappy frog I just cut it off. I keep a hoof knife handy but a pair of scissors or a pocket knife works just as well, just be careful to cut just the flap off.
Thrush has a distinctive smell and is black and gooey. You'll know something is off if/when you see it.

ETA you need to cut that flap off that's covering the crevise

Thank you for the information. I trimmed or should I say filed them myself. The last farrier (out of 3) was awesome but he no longer does it any more. I trimmed away a little of the flap covering the crease. I wasn't sure how much to take off. But from pictures on here I see I can take a little more off. What the picture doesn't show is that you can pretty much lift up the entire front of the triangle on the last picture of the back foot. The horse has about 60 days of slowly getting in shape before he will start harder riding. I just didn't want to take too much off and have to limit his use until it grew back. Plus his feet grow really slow but I added a hoof supplement to his diet to encourage good growth. Thank you for your comment.

The information alread given by Vidaloco is very good. White vinegar will work too. It's the acid that does it. But apple vinegar taste better (in case you're looking to eat the horse's frog ).
I wish I could give you a good picture of thrush, but it can build up in different ways/areas. The informatin already given provides a good discription (dark, gooey and foul smell). If it's not possible to cut it away and leave it exposed to the air (e.g. It's in a deep crevice) then you can pack it with cotton or gauze soaked with tea tree oil. Change out the soaked packing every 4 days. Changing it that soon might not be neede and one good soaking left for a week or 10 days might work, but I'm a bit anal about thrush and tend to do overkill.
To often my new horses have come with it.

I'll make up a spray bottle of vinegar for the tack room. Good advice. I have never heard of thrush before. I started researching how to trim my horses feet myself due to a few hoof trimmers that didn't do a very good job. I just rasped his feet down to where I feel (after reading a bunch and looking at pictures and how my horse walks on them.) But then I saw pictures of thrush, the white stuff on their sole and thought, holy cow, my horse has that. So thank you for the advice and I would rather prevent it so me and my horse never have to see it

The white powdering like items that cause a layer of frog separation is easy to deal with and goes away quite easily with removal as new frog replaces it. It's the nasty smelling, dark, gooey thrush that makes for the most problems.

Rinse with vinegar after picking out the foot and having any thrush exposed, picked out and exposed to the air.

It's good that you're taking the tlime to notice and making the effort to clean it out. Thrush is pretty easily treated and kept at bay if you check regulary. To ofter people don't take the time and effort to pick on the fron and find if there is any until it's already established. But even then it's treatable.

The excess on the frog looks like growth that could be trimmed off.

Another good "I'm not sure if it's thrush but would like to be proactive just in case" option is athlete's foot spray. I particularly like the powder spray. Won't do any harm, and is intended for the treatment of anaerobic bacteria. If you catch the thrush early, that can be all you need to treat it, also.

I was nervous about trimming the frogs. A lady posted that I needed to trim the groove free of excess frog.

*Love the foot spray suggestion! I didn't know that would combat it.

My worry wart nature just went into over drive when I was looking for instructions on how to trim his feet properly. Thank you for your suggestions!