Lens Frog information page

This page is to help you with the re-population of species in your area, this page will always be open to help and suggestions from all readers, relating their experiences through my Email link.

The first thing that you will need to do is to control the Cane Toad population on your property. The most successful way of doing this is to have a nightly hunt (until they are all but eradicated), this is best done by capturing the toads by hand and placing them in a garbage bag and freezing them, and put them in the garbage bin on collection day.

Getting rid of Cane Toads

Because the cane toad is a toxic creature care must be taken in their capture, it is not recommended using implements to try and kill the toad, because they can propel the poison from their poison glands up to around a meter or more.

I've found by using a plastic grocery bag ( the kind your supermarket pack your groceries in), as a glove and left loose around the hand, this tends to envelop the toad at the point of capture thus protecting you from any ejected poison. Remember all stages of the cane toad development are toxic.

Just a ward of caution when you do pick a Cane Toad up ensure that you point its rear end away from you as they have a tendency to pee when captured.

Another method of dealing with cane toads is to :- mix Dettol (antiseptic) and Water 50/50, fill an atomizer bottle with the solution, then go and squirt the mixture onto the toads, I am told this nocks them over very rapidly, and then means you don't have to chase and catch as previously mentioned. I guess all you need to do then is to bury them.

The only other introduced threat to frogs is CATS.

Creating a hatchery

In order to raise frog you will need to have a frog pond, now because stagnant water will also breed mosquitoes then you will need to have some larva eating fish (i.e., morning cloud or other minnow type native fish)living in the pond. Although these fish do not bother the older tadpole they will eat the new fry and the eggs.

So you will also need a nursery tank, this can be very much smaller than the main pond (I use a plastic wash basin, but an old babies bath will do the same job), the frog eggs will need to be hatched in this nursery where they will stay for no less than 2 weeks, at this stage they will be too large for the fish to take.

Old bath tubs make about the best ponds and can usually be acquired at very little cost, ponds can be constructed out of treated continuos pine garden edging about 300 mil high, and lined with a heavy grade polythene from the Landscape/Nursery near you.

After you have selected/constructed a suitable pond (best to have all this in place before collecting eggs, and winter time would be a good time to set one up in readiness for the spring season), you will need to fill it with water and stock it with a variety of water plants and the fish of course.Use clean sand/gravel in the bottom to anchor some of the plants, have rocks in the water so the frogs have somewhere to lay their eggs from (after you raise your frogs the mature creature will return to your pond to lay eggs so after the first season you may not have to go collecting eggs after rain periods.

You will need dead branches preferably with course bark, in the pond leaning up against the sides so that the baby frogs can exit the pond, you will also need logs and rocks to create stairways into the pond so that frogs can return for the mating seasons.

Water for the pond

If you haven't got tank water available or a supply of fresh rain water to fill the pond you will have to use water from your tap. This water contains chlorine so you will not be able to put frogs or tadpoles straight into this water, one of the members of the Brisbane Frog Society, has told me that you will need to use a neutralizer at double strength in the case of Brisbane water. The brand he recommends is " Wardleys Tri Star", he says the tadpoles fish and Neutralizer can all go in together. If you where going to let the chlorine dissipate naturally a period of 2 or 3 weeks may be needed. Tadpoles are very susceptible to chlorine and other toxins.>

The placement of the pond will need some thought, as it cannot be under pines trees (the cones and needles are toxic to the tadpoles) or under any other trees that may have toxic saps, also under mango trees isn't the best as the mango tree will cause the water to go black. The pond will need a warm shady spot.

The water may need changing every 4 to 5 months.

       
On the left here is my bathtub pond and on the right my latest 55 gal' drum ponds, I have managed to stop the dreaded 'Brazillian Cane Toad' "Bufo marinas", from breeding with 300 disposed of since January 1998 upto January 1999.
My reward absolutely masses of Frogs are now in residence and we now have good populations of around 6 species from about a range of 3 species in low numbers, during the reign of "Bufo marinas".

Feeding your tadpoles

Gold fish food can be used but this can tend to make the water go cloudy, the best form of food (and it's free in most cases, from your local supermarket, just tell them you are feeding tadpoles) are the outer leaves of lettuces. These are to be steamed until soft then finely chopped up and frozen into ice cube makers, these cubes are then fed to the tadpoles as required or on a daily basis depending on the extent of the population of tadpoles.

This can be a family venture as my daughters and granddaughter derive great pleasure from watching the tadpoles at feeding time to watching the emerging frogs.

Egg collection>

Collecting the eggs is the best way to ensure that you only breed frogs, as frogs eggs appear as floats of eggs all clustered together in a circle, cane toad eggs are in a string formation usually along the waters edge.

Tadpole identification

If collecting tadpoles from the wild, frog tadpoles will generally be lighter coloured underneath to the point of almost being able to see their innards, cane toad tadpoles are generally solid black all over.

your feed back is welcome

Garden Len

Queensland Frog Society The Brisbane Frog Society: The society's main aims are to encourage and foster an interest in frogs,
Australian Museum Online Cane Toads - ' Bufo marinus': Cane Toads are found in habitats ranging from sand dunes and coastal heath to the margins of rainforest and mangroves.

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