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Fundulus grandis eggs

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#1 lilyea

  • NANFA Member
  • Peace River Watershed, Central Florida, USA

Posted 20 November 2016 - 07:49 PM

Today I pulled about 30 Fundulus grandis eggs from two extra long spawning mops.  This fish has several common names including Gulf Killifish, Mud Minnow, and Cocahoe Minnow and is a common saltwater bait fish.  The sparkling gold spangling on the dark brown sides and yellow outlining on the fins make this a very pretty native fish once it colors up (they were all a generic light gold when collected).  These particular fish were collected on the same Tampa Bay trip as the Lucania parva but it took a bit longer for eggs to start appearing in the mops in the 55g Grandis tank.  As would be expected from a much larger killifish species, the eggs are much larger (slightly bigger than Chrysotus eggs) and have a brownish-gold tint (as opposed to the virtually clear Parva eggs).


Unlike the Parva that has limited breeding information on the web, there is a lot more info on the Grandis because of its popularity as a bait fish.  Specifically, LSU has posted detailed info about breeding and raising this fish in pools and ponds (http://www.lsuagcent...aitfish/minnows) - their approach is to use SpawnTex breeding pads suspended in the water column using PVC floats.  I was pleasantly surprised to see that the Grandis also use spawning mops (although my egg count is much smaller than what LSU extension center is reporting).  Even though I used a much longer spawning mop (50% longer than normal) virtually all of the eggs were found within the top one inch of the mop.  The eggs are now water incubating so I now have my fingers crossed for hatching.

#2 fundulus

  • Global Moderator

Posted 22 November 2016 - 12:52 PM

There are commercial grandis breeders who will sell you viable eggs for a penny each and ship them to you. Once they get going, you should have plenty.

Bruce Stallsmith, Huntsville, Alabama, US of A

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