purplecatfish Posted December 10, 2007 Report Share Posted December 10, 2007 We have a concrete pond which is in excess of 50,000L . As we can't have mosquitoes breeding in it I need to add several hundred fish of some sort . I also need to add some floating native plants. There is no current. At least 50% is shaded all day long. There is plenty of insect life. What would you use? And why? (Goldfish aren't an option as they don't eat the larvae when they're older.) Quote Link to comment Share on other sites More sharing options...
evilknieval69 Posted December 10, 2007 Report Share Posted December 10, 2007 White cloud mountain minnows. they will breed heaps in there, and will eat the insects Quote Link to comment Share on other sites More sharing options...
fishandchips Posted December 11, 2007 Report Share Posted December 11, 2007 Large comets. We have a very large pond (bigger then our house) not sure of litres but we have heaps of goldfish and the biggest ones are just under 30cm in lenght. They seem to keep the bugs down. Quote Link to comment Share on other sites More sharing options...
tHEcONCH Posted December 11, 2007 Report Share Posted December 11, 2007 A Loch Ness Monster! Quote Link to comment Share on other sites More sharing options...
danilada Posted December 11, 2007 Report Share Posted December 11, 2007 A Loch Ness Monster! Agree Quote Link to comment Share on other sites More sharing options...
scott16 Posted December 11, 2007 Report Share Posted December 11, 2007 wat about fresh water trout so you can catch and eat when you want lol or wont that work? Quote Link to comment Share on other sites More sharing options...
OscarBoy Posted December 11, 2007 Report Share Posted December 11, 2007 yea put some trout in Quote Link to comment Share on other sites More sharing options...
davidb Posted December 11, 2007 Report Share Posted December 11, 2007 dunno if that is legal :roll: Quote Link to comment Share on other sites More sharing options...
OscarBoy Posted December 11, 2007 Report Share Posted December 11, 2007 hmmm true well whos going to know go "catch" some and say there to eat but chuck them in your pond lol Quote Link to comment Share on other sites More sharing options...
Ira Posted December 11, 2007 Report Share Posted December 11, 2007 And I don't think trout do well in ponds, they're river fish. Quote Link to comment Share on other sites More sharing options...
owen Posted December 11, 2007 Report Share Posted December 11, 2007 or lake fish.. trout need very clean, cool and well oxygenated water. Id go native- galaxiids, eels, crays and bullies. Eels make great pets, they become very tame and can be hand feed and petted and can grow huge! Quote Link to comment Share on other sites More sharing options...
Wok Posted December 11, 2007 Report Share Posted December 11, 2007 Whitebait :lol: Quote Link to comment Share on other sites More sharing options...
OscarBoy Posted December 11, 2007 Report Share Posted December 11, 2007 Get eels then get Whitebait for live food Quote Link to comment Share on other sites More sharing options...
fishandchips Posted December 11, 2007 Report Share Posted December 11, 2007 Brown trout can do really well in ponds as long as the pond is large enough. My dads cousin caught brown trout and put them in his pond, they are huge now. The pond was used to irrigate an orchard. Brown murky water. The trout loved it. You could feed them from the jetty. Quote Link to comment Share on other sites More sharing options...
jn Posted December 12, 2007 Report Share Posted December 12, 2007 Goldfish don't eat older larvae? Or older goldfish dont' eat larvae? Quote Link to comment Share on other sites More sharing options...
owen Posted December 12, 2007 Report Share Posted December 12, 2007 Brown trout can do really well in ponds as long as the pond is large enough. My dads cousin caught brown trout and put them in his pond, they are huge now. The pond was used to irrigate an orchard. Brown murky water. The trout loved it. You could feed them from the jetty. Brown trout would be cool but would they ea mozzy larva? Quote Link to comment Share on other sites More sharing options...
purplecatfish Posted December 13, 2007 Author Report Share Posted December 13, 2007 Goldfish don't eat older larvae? Or older goldfish dont' eat larvae? Large comets. We have a very large pond (bigger then our house) not sure of litres but we have heaps of goldfish and the biggest ones are just under 30cm in lenght. They seem to keep the bugs down. Goldfish are actually a bad choice for mosquito control. Even though the health board recommends them, DOC recommends native fish as their studies show that goldfish are ineffective especially as the goldfish get older. I'm thinking that danios or mountain minows would be a better choice compared to goldfish or trout, as they are a smaller fish which will prefer smaller meals (ie bugs). And they are also more likely to breed and create a self sustaining population, the hundreds of goldfish that were released a few years ago have died out even though there's plenty of bug life. I'd love to use natives but I'm not sure which ones would be best. The pond is actually an old building that is set below ground level in a concrete pool type hole. Rainwater used to be pumped out but now it is disused. There is no current or circulation and it is only filled by rain water. During summer it drops to about 6 ft deep (you can just see the top of the door). There is a 2 metre gap between the building and the sides of the pond. And the building is permanently flooded, which creates shade for a fair portion of the surface. Quote Link to comment Share on other sites More sharing options...
Ira Posted December 13, 2007 Report Share Posted December 13, 2007 Cool...We need pics. Quote Link to comment Share on other sites More sharing options...
jn Posted December 14, 2007 Report Share Posted December 14, 2007 Sounds like a safety hazard! But cool nonetheless... so someone tell me.. is it legal to keep native fish and if so where can you procure them from Quote Link to comment Share on other sites More sharing options...
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