Kids upstairs, parents downstairs. How???

Joined
Jul 14, 2015
Messages
4
Reaction score
8
Country
I have a 2 tier pond with 2 goldfish and 4 Koi in the lower pond. The top pond overflows and cascades down rocks about 18". Yesterday my wife noticed we have a few baby fish in the upper pond. They appear to be baby Koi. My question is, how did they get up there? We tried keeping a few fish in the upper pond a couple months ago, but they all ended up going over the waterfall into the lower pond. Would it be possible for babies or eggs to survive a trip through a UV sterilizer and through a bio filter? I have a homemade biofilter from a small wastebasket which pours into the upper pond.
pond front.jpg
 
A

Advertising

sissy

sissy
Joined
Jan 17, 2011
Messages
31,396
Reaction score
14,418
Location
Axton virginia
Hardiness Zone
7A
Country
could frogs have carried some of the eggs up on there legs or could you have taken plants from the bottom pond to the top .Could eggs make it if they got sucked into the pump ?
 
A

Advertising

Joined
Jul 14, 2015
Messages
4
Reaction score
8
Country
The pump is designed to accomodate larger debris but I can't fathom anything surviving a trip through a UV sterilizer and multiple layers of bio filtration. The frog theory is possible. I didn't even think about that. We've been raising a few bullfrog tadpoles that recently grew legs and went exploring. We haven't moved any plants in a while.
 
Joined
Jun 5, 2013
Messages
2,183
Reaction score
1,320
Location
NC, US
Hardiness Zone
7a
Country
I have similar experience. I just found a baby goldfish in a bog. The bog is about 30 feet away from the pond and filled with gravel, no egg would be able to pass through that. So for mine I think it came with the plants I got from Addy. Or could just be the frogs who did the deed in the pond and then went to the bog.
 
Joined
Jun 11, 2012
Messages
6,902
Reaction score
6,984
Location
Water Valley, Alberta
Hardiness Zone
2a
Country
Eggs come attatched to plants all the time.
That's how I got all my goldfish. It took quite a while before I spotted them swimming around as well.
 
Joined
Jun 25, 2013
Messages
1,313
Reaction score
743
Location
Iowa
Hardiness Zone
5a
Country
I usually find a few babies in my filter when I clean it. The eggs make it through the pump and into the filter.
 
Joined
Jun 29, 2015
Messages
1
Reaction score
0
Hardiness Zone
California, 9b
Country
Same here, I find tadpoles swimming at the top of my skippy filter.
 
A

Advertising

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Top