{"id":2648,"date":"2024-09-05T05:17:22","date_gmt":"2024-09-05T05:17:22","guid":{"rendered":"https:\/\/bogott.net\/unspecified\/?page_id=2648"},"modified":"2024-09-05T05:17:22","modified_gmt":"2024-09-05T05:17:22","slug":"elacatinus-oceanops","status":"publish","type":"page","link":"https:\/\/bogott.net\/unspecified\/?page_id=2648","title":{"rendered":"Elacatinus oceanops"},"content":{"rendered":"\n
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I can’t find convincing info about whether these fish are sequential hermaphrodites or have determined sexes; in any case it was pretty easy to get a pair, I never had more than three or four fish together at a time but always managed to wind up with a pair. They spawned frequently in a capped 3\/4″ pvc tube. I made various attempts at hatching, sometimes by leaving the parent in the tube and sometimes by removing the parent and forcing a hatch with aeration. I believe the classic mechanism is to tickle the eggs with a feather.<\/p>\n\n\n\n

Getting fry was easy! The fry almost always died in a day or two, too soon to be from starvation. Most losses were due to getting stuck on the surface of their tank or tub; it wasn’t until I found the right aeration level (with big bubbles) that I was able to get some fry past the first few days.<\/p>\n\n\n\n

After that, a few fry grew quickly on a diet of rotifers in a black tub, but losses were high for the first couple of weeks. I used the same low-density rotifer + phyto technique (in the same tub) that I used to raise clownfish<\/a>.<\/p>\n\n\n\n

Unlike clownfish, it took nearly a month for the fry to settle. Here are fry a few weeks in, still fully pelagic:<\/p>\n\n\n\n

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I gave the pair that produced the above fry to Bill Capman<\/a> where he raised quite a few more fry in his elaborate setup at Augsburg University. The fish I gave him turned out to be harboring Cryptocaryon so the gift was a bit of a disaster (and, in retrospect, this may account for the poor survival rate of my fry as well.)<\/p>\n","protected":false},"excerpt":{"rendered":"

I can’t find convincing info about whether these fish are sequential hermaphrodites or have determined sexes; in any case it was pretty easy to get a pair, I never had more than three or four fish together at a time … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2480,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2648","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/bogott.net\/unspecified\/index.php?rest_route=\/wp\/v2\/pages\/2648","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bogott.net\/unspecified\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/bogott.net\/unspecified\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/bogott.net\/unspecified\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bogott.net\/unspecified\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2648"}],"version-history":[{"count":1,"href":"https:\/\/bogott.net\/unspecified\/index.php?rest_route=\/wp\/v2\/pages\/2648\/revisions"}],"predecessor-version":[{"id":2654,"href":"https:\/\/bogott.net\/unspecified\/index.php?rest_route=\/wp\/v2\/pages\/2648\/revisions\/2654"}],"up":[{"embeddable":true,"href":"https:\/\/bogott.net\/unspecified\/index.php?rest_route=\/wp\/v2\/pages\/2480"}],"wp:attachment":[{"href":"https:\/\/bogott.net\/unspecified\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2648"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}