Hey Ishka,

Could you provide us with some information on your husbandry? Sometimes very simple changes can greatly influence an herp's behavior and feeding response, and with some additional information we may be able to use some deductive reasoning to find a solution to the problem. Some species, and even particular individiduals, can be more sensitive to adapting to new captive environments.

I'm not very well versed in my frog knowledge, particularly for that of a spotted marsh frog, but hopefully someone else can use your husbandry information to see if any changes need to be made:

1) What size enclosure are you keeping the frog in?
2) What substrate are you lining the bottom of the enclosure with?
3) Are you measuring temperatures with a digital thermometer or tempgun? (Analog "stick-on" thermometers and aquarium thermometers can be quite inaccurate)
4) What temperatures are you reading throughout the enclosure?
5) What is the day/night cycle like? I noticed you said you provide 2-3hr breaks, can you elaborate on this? Most herps are typically given heat or light for ~12hr day cycles and ~12hr night cycles as would occur in the outside world.
6) How frequently do you handle the frog or interact with it? It the enclosure in a high traffic area of the house?
7) Can you provide us with any other relevant information about your husbandry and the frog's behavior or appearence?

Some animals can take a couple of weeks to adjust to a new home before they begin feeding, so it may just be a waiting game until he is hungry or comfortable enough. If we can address your husbandry directly and ensure everything is spot-on, then we can rule out stress from husbandry errors.

It may also be useful to try to bowl feed your crickets, and/or provide them with some kind of sustenance in the enclosure like a piece of carrot or some other vegetable. This will help you better monitor feeding frequency and will potentially keep your crickets alive a bit longer (and potentially prevent any nibbling by crickets on the frog).

Again - I am a reptile and invert guy, so I'm hoping to leave this one as a setup for the phib experts.

Best of luck!