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I have a cobalt tinc that will search out food but once he/she get close to the cricket it won't strike and will hop away and start looking for another cricket. The crickets are small enough to eat because the other tinc in the tank is getting them, and is smaller.

The larger one that is getting pretty skinny, can anyone help?
Thanks

Have you tried fruit flies? This is just a thought, but darts don't recognize food that isn't moving, and the crickets may be "freezing" in place before the larger frog strikes at them, while the other smaller frog may be more nimble and quick, catching them on the move. Whenever I get new frogs, I isolate them in separate small "nursery" tanks and virtually surround them with dusted fruit flies with a spice of springtails, until I'm sure each is eating well and growing before putting them together the main vivarium. I use crickets whenever I can order pinheads in warm weather, but they are more of a summer treat than a main diet, because my attempts at culturing them have been rather unreliable, to say the least. Fruit flies are the mainstay over winter, and one can be generous with feeding them because they are easy to culture. Neither do they hide out and perhaps grow large enough to annoy the frogs.

Do both of its eyes appear clear? Another thought might be that something has clouded one or both eyes, so the larger frog isn't seeing the prey as well. He's obviously not intimidated, because he is out hunting and hungry. He wouldn't be active if he were sick.

I would isolate him in a small tank, such as a Critter-keeper with the vents closed from the ouside with Saran wrap to keep the humidity up, a wet paper towel and a tipped on edge small delicup of spring water with some sprigs of plant cuttings to hide behind, and feed him separately for awhile, giving him plenty of dusted fruit flies, perhaps a pinhead cricket or two, Then observe him from there.
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Patty
Pahsimeroi, Idaho

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