freshwater Frogs and fish

Question
QUESTION: Hi there.  My freshwater tank has been set up roughly about 5 months ago.  It is a 10 gallon tank that had 4 tropical fish (each about 1 in. long) and 1 frog (1 inch).  

Now 5 months later, I have 1 fish left.  I believe the other 3 was eaten by the frog, but I'm not sure since there were no trace of any dead fish bodies in my tank.  The 3 apparently just disappeared!  

Could a african dwarf frog eat such small tropical fish in a 10 gallon tank?  If so, what should be my next step?  I'm heading out this weekend to buy more fish and I'm thinking about just getting rid of the frog since I think it may be eating all my fish.

By the way, I feed the fishes and the frog regularly.  The tank is extremely clean since I have 5 snails in the tank.  I also do water changes regularly as well.

Please help!!  My poor fishes are all disappearing.

ANSWER: Hi Angela;

Dwarf frogs are pretty small and don't usually bother the fish. Their mouths are tiny. I'm wondering what kind of fish they were and which one is left? If the last fish has killed them or they died from something else, the frog and snails would easily consume the bodies overnight before you ever see them. Fish can also jump out of tanks. The fact that your frog is still in there tells us all the holes in the lid are probably all covered up so I doubt it. (Just brainstorming here.) Let me know what the fish are/were and we can go from there...

At Your Service;
Chris Robbins

---------- FOLLOW-UP ----------

QUESTION: Hi Chris,

Thanks alot for your kind input and for the quick response.  The fishes that I bought were all guppies (2 blue tailed, 2 yellow tailed)  

http://www.liveaquaria.com/product/prod_Display.cfm?pCatId=1047

Very similar to the kind in the attached link.  I dont think these fishes eat each other as my friend had the same set up as me.  I also checked the ground and the outer surroundings of the tank, but still couldn't find any leads to my disappearing fishes.

Well, I just did a water change.  Hopefully, what's left in my tank will survive (1 fish, 1 frog).  Since I'll be shopping for more fish this weekend, I'll be sure inform you of the outcome in a few weeks.      

Thanks for your help.  Wish me luck!
ANSWER: Hi Angela;

You may have an especially territorial guppy that bullied the rest. Especially if they were all males. They usually do okay but sometimes there's an overly aggressive dude in the bunch. If you decide to have females with the males, be sure there are at least 2 females per male. Those guys want to breed all the time. Females can die from being harrassed so often if he can't distribute his "attention" amongst at least one other female. Any female guppies will do so don't worry if you can't get extras of the same color variety. They really don't care.

I hope all goes well for you next time...

At Your Service;
Chris Robbins

---------- FOLLOW-UP ----------

QUESTION: Wow I didn't know having too many males can be a problem.  How can I tell if the guppy is a female or male?

Thank you for the information.

Answer
Hi Angela;

In guppies, the males are the pretty ones. They have larger tails and usually have brighter color on their bodies. The females have shorter less colorful tails and their bodies are more round. Also, the bottom back fin in the male is pointed and the female's is fanned out. Here is a link to a pic;

http://www.britannica.com/eb/art-5787?articleTypeId=45

At Your Service;
Chris Robbins