Hello and welcome to the forum It sounds as though you've had your share of frog dealings.
Do you have a photo of the new frog?
Some tips :
Use dechlorinated water
Get some amphibian calcium with vitamin D3 powder and amphibian multivitamin powder. Light dust on insects, using a cup or baggie. Calcium/D3 every other day and MVI one day a week but not on the same day as the calcium/D3. All captive bred frogs will need these to be healthy .
Be sure to do your weekly water changes of about 50% water for any water areas of your tanks. The filters can remove solid wastes, but do not remove ammonia, nitrates, or nitrites. See the nitrogen cycle of a fish tank.
Temps for most local outdoor frogs should be similar to that of their natural environment. Mid 70's for daytime temps and low 70's for nighttime temps. This also depends on the species and natural locale of the species.
Humidity should range around 50-70% for most species. We can be more specific after photos. This can be done by misting the tank. You can use distilled water for misting, which helps avoid glass spots. Distilled water should not be used for soaking water bowl or to moisten new substrates. Use dechlorinated.
Substrates should be safe also. You can use plain plantation soil or coconut fiber. This should be changed about every 30-45 days to remove wastes. You can also make a false bottom with ABG and leaf litter.
Frogs make great pets . These tips can help yours live longer and healthy .
Be sure to get a tank lid that has clamps or a tank that has locking doors to keep them safe .