Quote Originally Posted by flybyferns View Post

TWO QUESTIONS for JEFF :
1)is there competition going on! Will one bug ie ants - cause the demise of your very important Iso and spring population ?
2) Centipedes - What kind --a photo would be good ( if you can ) Is there is any worry about toxicity if eaten by the frogs?
The ants may be feeding on a variety of things in the enclosure; but regardless they are not good. They will be competing with springtails and isopods for various useful organic material and may pose a direct threat or stress factor for the frogs in numbers.

I'm honestly not that well versed in my myriapods, but the centipedes should still be removed manually with tweezers as you see them. They likely won't cause any harm to the frogs by ingestion but depending on the size they may be able to inflict a bite, and most species produce a type of venom to aid in subduing small prey and I'm not honestly sure how hazardous a bite would be for a frog... The centipedes should spend the vast majority of their time hiding within loose substrate and cage decor and are thriving from the warm and moist microhabitat you have in the frog enclosure; feeding on developing red worms and smaller invertebrates. Their pretty generalist predators, and will eat most any of the other inverts in there if they can overpower it, making them a threat to the useful organisms and potentially hazardous to the frogs themselves.

I would wager that replacing the substrate and taking proper quarantine measures (i.e. baking the wood/decor) will virtually eliminate the centipede and ant problem. You may get the occasional pede pop up again if there was any minute larvae or eggs that managed to survive but if you are thorough they shouldn't be an issue = )