11 replies to this topic

[malbone]

Some batches I've lost 100% in less than a week but about 90% over all - I found a yabbie I hadn't seen for years and maybe he had a meal of em but it's in all ponds and there are 9 spread out all over the back yard so don't think he could have got to them all.  The only living things in the ponds are Pygmy Perch.  Dragon fly are supposed to eat them but can't see they could catch and eat them all in such a short time.  When they get to a half decent size they make it through to a frog.  It seems to have gotten worse each year.  Any suggestions???   thanks mal

[MrLeifBeaver]

Maybe you need to set up a motion camera and you might find the culprit?

[Jules]

could be there just dying off. to much heat not enough shaded area? food competition?

pymy perch wouldn't eat them, and I doubt a single yabby would wipe out entire amounts, maybe some birds?

My dog tries to catch the koi in our pond haha, you got a dog?

[gezza]

I had 2 ponds which contained baby koi and tadpoles and I notice they were disappearing each night and caught the culprit which was a nankeen night heron very quiet and come at night http://www.birdsinba...rax-caledonicus

[gouramee]

The ibis loves eating tadpoles and guppies at my children's school...

http://www.birdsinba...orum/All-3-Ibis

[fuggers]

sprayed or fertillized near the ponds or any chance of run off?

[shayne]

+1 for the bird option but adult frogs also prey heavily on tadpoles, have observed it here often. it sounds like you have good numbers there. do you have any cover for them ie floating plants, iris or taro

[Shane-o88]

I have a few frogs around my house that I need to remove, if you want them let me know and I'll catch them at night and put them away somewhere so you can come get them.

[bigjohnnofish]

i have armies full of motorbike taddies... wish they'd disappear so white clouds can breed and not have their eggs eaten

[shayne]

have the same problem

[malbone]

No Ferts - poison

big lilly in 3500 pond covers about half of pond and none in there at all and had about 3 spawns - half day shade but arvo sun - had heaps other years

got 2 dogs but never have shown any interest

thanks but have heaps of adults - unless they are Slender tree frogs - my M/b's have disappeared until next July / August when they jump straight into spawning again

never seen a bird but if they only come at night who knows

could be frogs I spose and was really my only thought

 

thanks guys - if it's frogs there is nothing I can do........mal

[shayne]

when i lived close to bibra lake had some slenders set up camp, it didnt last either the motorbikes or the snakes won