Specializing in freshwater invertebrates and microfish from around the world.

New Arrivals

We have new species coming in several times a month, so be sure to check our Current Stocklist regularly, and keep an eye on the New Arrivals category.

About Msjinkzd

Invertebrates by Msjinkzd is located in York, PA and is run by Rachel O’Leary. She is a mother of 3, loving wife, and an unmistakable personality at conventions and clubs around the country. A life-long fish keeper, her interests range from microfish to monsters, with a focus on invertebrates and dwarf species. Rachel has spent the last 15 years studying invertebrate husbandry, aquascaping, and breeding practices. Rachel’s fishroom consists of 60-100 tanks ranging from 10 to 220 gallons, and her breeding program includes members of the Corydoradinae group, apistogramma, ancistrus, hypancistrus, pelvicachromis,  as well as various cyprinids and livebearers as well as crabs, snails and shrimp. A passionate educator, Rachel travels to lecture nationally and internationally for Aquarium Clubs and Conventions. She is a frequent contributor to various publications including Amazonas Magazine, The Aquatic Gardener Magazine, as well as producing twice weekly content on her Youtube Channel. She is also the co-author of a book titled The 101 Best Freshwater Species: How to Choose & Keep Hardy, Brilliant, Fascinating Nano Fishes, Plants and Invertebrates.  One of the leading importers of small fish and invertebrates in the US, she works with dozens of dwarf shrimp, crab, fish and snail species,  and is regularly bringing in new and hard to find specimens to make them available within the United States market. She is also passionate about elevating the status of US Aquascapers, and has been diligently working on making quality aquascaping tools, substrates, plants, and hardscape available within our market.


More About Msjinkzd

Recent News

January 22, 2019 |

Partnership with Tannin Aquatics! 10% off Botanicals

Hey guys! It has been a LONG time since I have updated my blog! I am SUPER excited to announce a brand NEW...

May 17, 2016 |

Chicago Cichlid Classic!

Hey guys! Things have been busy as ever around the fish room! The tubs are nearly ready for fish (new video...

March 16, 2016 |

Been awhile, things sure have been BUSY!

It has been way too long since I updated the news page here on the website! As many of you know, I have been...

December 8, 2015 |

Trigonostigma espei- Lamb Chop Rasbora

Trigonostigma espei- “Lamb Chop rasbora” pH: 5.5-7.5 temperature-71-82 hardness:2-10 dkh adult size:...

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