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keeping mosquitofish in bullfrog paludarium?

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#1 Leo1234

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  • san clemente, california

Posted 15 May 2019 - 04:18 PM

I am thinking of adding my mosquitofish from my 20 long to my 45 gallon bullfrog paludarium. the water area takes ~3/4th of the 45 gallon (footprint is 48in long by 12in wide) with the land area starting at the middle and water wraps around in front of the land on the left side about 4in in front of the glass.
I'm in the process of redoing the tank to have more plants and such from it's natural habitat. I assume that with the water being deep in some areas and all the plants that some mosquitofish can survive and breed? I'm fine if I lose a few so long as I have a population going in the aquarium.
my bullfrog currently spends a lot of it's time on land and occasionally goes into the water. It does eat some frozen silversides as part of it's diet, so it does eat fish, but I don't know how inclined it would be to hunt such small fish if it's already getting easy food. Also my frog seems to know when to stop eating as it won't accept any food if it's eaten recently.

I probably forgot to add something, but if I remember I will add it.

so, would the frog work with the fish? also any recommendations for plants?



#2 JasonL

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  • Kentucky

Posted 16 May 2019 - 08:26 AM

I think the gambusia will essentially be feeders for your bullfrog, as will pretty much anything else that could conceivably fit in its mouth.

#3 Leo1234

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  • san clemente, california

Posted 16 May 2019 - 11:16 AM

I’m fine with it feeding on the gambusia so long as I can have enough survive to breed. I just don’t know how many would survive as, from what I remember, they mainly stay at the top of the water and are a bit slower than minnows. Would a lot of plant cover increase their chances or will all the gambusia get eaten before they can breed? Worst case I can keep them on the tank they are in right now and redo it

#4 JasonL

  • NANFA Member
  • Kentucky

Posted 16 May 2019 - 01:07 PM

I don't see them surviving very long, much less breeding, in any scenario inside an enclosure with a bullfrog. That said, gambusia aren't difficult to replace so there's not much downside to giving it a shot. At least here in KY you can find gambusia in pretty much any body of water that holds fish. They've been introduced in Cali, perhaps they are near where you live as well.

#5 swampfish

  • NANFA Member

Posted 22 May 2019 - 09:04 AM

I have an outdoor in-ground pre-formed bog pond that holds about 160 gallons of water that has occasionally attracted a green frog or bullfrog over the years. Each time a frog has shown up, every fish, usually Fundulus cingulatus, has disappeared within a few days. The pond contains cover in the form of a water lily, Najas (guppy grass), and floating insectivorous plants, but a large frog apparently has no trouble eating all of the adults and fry within a week. 


Spring peepers and cricket frogs both co-exist with the fish, but not green frogs or bullfrogs.


i agree that adding Gambusia would turn your paludarium into a frog feeding service.


Phil Nixon

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