Possible Crisis, need some expert advice

[privet01]

I don't know anything about "whites". However I don't see it as a big issue UNLESS.... your water feature, if you have one, flows through or comes in contact with the substrate containing the miracle grow. Then you'll see a spike in the nitrates and ammonia in the water which is essentially what you have when your frogs excrement and urine build up in the water. Might be that changing the water more often will keep the levels down, but then again it may not. You might get one of those aquarium test kits and test the water now. If over the range, then change it and test an hour or so after, then again a day after and see how fast it's going too high.

But if you don't have a water feature, or it's isolated well from the "adulterated" substrate, then I see little to worry about. All of this IMO of course.

[Kisa]

Thanks for you quick reply and opinion, I really appreciate that. I won't have the water anywhere near where the affected substrate is attached as it is high up in the tank and I plan on having a water bowl at the bottom of the tank in case they need to soak. The peat moss is only mixed into the substrate I have used for the background covering and will not be used at all in ground substrate. I also don't plan on misting the tank much, as the live plants inside and sheet moss on the ground will keep moisture pretty high. Once again thank you for your reply. Does anyone else have experience with this as well, I'd love a variance of opinions.