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GCCA's Rare Fish Auction is Sunday, February 25

Rare Fish Auction (New Date)

Note: We have moved the Rare Fish Auction to Sunday, February 25th. Due to inclement weather, our breeders were not able to ship fish.

About the Rare Fish Auction

Twice each year, GCCA works with top breeders and importers from around the world to bring in rare and hard to find cichlids. 

We generally get acknowledgement of the list of fish about a week or two prior to the auction and post a list on our website.

Curated Auction

The Rare Fish Auction is held in curated format. The auctioneer will show a slide for each group of fish to be auctioned which will include a picture, care instructions and suggested retail price. This helps inform bidders about the potential purchase.

Purchasing Fish - Members Only

You must be a member of GCCA in good standing to purchase at our auction. Please go to Join GCCA if you would like to join prior to the auction.

Fish List

The list below is subject to change, but here's what we expect to have available.

Altolamprologus calvus (Black)
Altolamprologus compressiceps orange
Altolamprologus compressiceps redfin sunset
Apistogramma cacatuoides
Apistogramma hongsloi
Apistogramma shishita
Cichlasoma festae
Cichlasoma pearsei
Cichlasoma tetracanthus
Crenicichla regani
Cryptoheros nanoluteus
Cryptoheros sajica
Electric Blue Jack Dempsey
Exochromis anagenys
Geophagus caqueta
Geophagus pelligrini
Herichthys bartoni
Julidochromis regani "bujumbura"
Julidochromis regani jet black
L128 Pleco
L199 Pleco
L200 Pleco
L201 Pleco
Labidochromis caeruleus
Lamprologus occelatus Gold
Longfin Panda Corydora
Nandopsis haitiensis
Neolamprologus leleupi
Parachromis dovii
Red Shoulder Severum
Red/Gold Severum
Theraps irregularis
Tropheus moori bemba
Tropheus moori chimba
Tropheus moori ikola
Various Pleco fry

Details and Location

Sunday, February 25, 2018 | 6PM

Doubletree Hotel Downers Grove
2111 Butterfield Rd.
Downers Grove, Illinois, 60515
1-630-971-2000   |  Map and Directions


GCCA's Next Meeting is Sunday, March 11

Ron Coleman speaks on "Costa Rican Cichlids"

ron coleman 200 200Dr. Ron Coleman is Professor at California State University, Sacramento and teaches courses on Ichthyology (the study of fishes), Fisheries Biology, Animal Behavior and other related topics. His specific field of study is evolutionary ecologist, which means that he tries to understand behavior in the context of the organism's whole life and in terms of how the behavior evolved by natural selection.

Ron says:

I am interested in cichlids from two angles, both as a scientist and a hobbyist. On the hobbyist side, it is hard to beat cichlids as entertaining and just plain interesting animals to have around. They are intelligent and curious creatures that come in so many shapes, sizes and colours that I find it hard to believe that anyone could not be fascinated by them.

Many of these same qualities of cichlids make them fascinating to me as a scientist. The sheer diversity of the family offers countless opportunities to evolutionary biologists like myself.

Cichlids, are nature's gift to the evolutionary biologist. So many questions of evolutionary biology are stifled because of the lack of diversity in many groups of organisms. For example, the North American sunfish are a fabulously interesting group of fishes and few things can match a male bluegill sunfish protecting his nest and babies. And yet, we can never answer the question of why it is the male bluegill that guards his nest rather than the female by studying sunfish. Why? Because it is the same for all sunfish. All species in the family exhibit male care so we have nothing to compare them with.

Sunday, March 11, 2018 | 6PM

Doubletree Hotel Downers Grove
2111 Butterfield Rd.
Downers Grove, Illinois, 60515
1-630-971-2000   |  Map and Directions

Eretmodus marksmithi

 Eretmodus marksmithi

Above Eretmodus marksmithi. Photo by Mario Toromanovic. 


The Eretmodus genus, together with Spathodus and Tanganicodus belongs to goby-like cichlid genera from Lake Tanganyika. Eretmodus cyanostictus, the type species of the genus, was first described by Boulenger in 1898 where it was found in southernmost part of the lake. The northern form has always been exported as E. cyanostictus although it has been known to be distinct from that species for more than two decades. In 1988, Konings pointed to differences between southern and northern species (which he called Eretmodus sp. “cyanostictus north”) and in 2012 Burgess described the northern form as Eretmodus marksmithi. (Source: “Tanganyika Cichlids in their natural habitat” 3rd edition by Ad Konings) Sexes are alike, except that males are bit longer than females. Males get up to about four inches in length. Females are slightly smaller reaching a maximum length of about three to three and one-half inches.

Etymology: eretmo = oar ( Greek ) +odous = tooth ( Greek ) referring to the peculiar shape of the teeth; marksmithi – Mark Smith ardent cichlid fancier and breeder, photographer, and author, who was instrumental in obtaining specimens and photographs of this new species.


Eretmodus marksmithi is found in the rocky zone of the shallow intermediate habitat, of Lake Tanganyika, where it spends most of the time grazing algae from top of the rocks. It’s been observed in the northern to central coast lines in Tanzania and D.R. Congo on localities such as Kigoma, Luagala, Kansombo in Tanzania and Muzimu and Kabimba in D.R. Congo.


Knowing Eretmodus marksmithi was an herbivore. I immediately placed them in a 75 gallon tank with large group of Tropheus moorii "Ilangi". The tank was large enough for the two species and it was furnished with large 3D background, which was excellent place for them to “chill” during the day. The set-up also had many rocks and cichlid caves where the fish were able to hide if needed and thick layer of sand on the bottom. Filtration was provided by two canister filters, which made plenty of water current, mimicking the natural habitat. I conducted 30% bi-weekly water changes, and I would also add aquarium salt, after each water change, so my pH was always around 8.0. The water temperature was at maintained at 79°F.


Eretmodus species live on a diet of filamentous algae which are scraped from the rocks. They are usually found grazing from the upper sides of small rocks (From the book “Tanganyika Cichlids in their natural habitat” 3rd edition by Ad Konings). I fed my fish with strictly plant based foods, by using mix of spirulina and veggie flakes - it worked great.


I obtained eight juvenile Eretmodus marksmithi at ACA convention in Louisville during the famous BABE auction. I knew I overpaid for them, but it was for the good cause and I really wanted them. At the time they were sold as Eretmodus sp. “cyanostictus north” but after some research, it was clear that this was indeed described specie of Eretmodus marksmithi. They were around two inches long and probably five or six months old. I like buying juvenile or small fish, growing them up, and breeding them, rather than buying breeders or breeding pairs. That way you can study and watch your fish growing, forming pairs and experience whole breeding process.

Eretmodus marksmithi are bi-parental moouthbrooders. The pair bond lasts several weeks before and after the fry is born. The female incubates the eggs during the first 12-14 days and then the male takes the offspring into his mouth for a further one to three weeks.

I did not witness my Eretmodus marksmithi spawning, but during the water change I noticed one of the fish holding. Upon closer inspection, it was clear that it was one of the males. I left him for few more days and then stripped the fry. At this point, the fry were fully developed and completely without a yolk sac. I placed them in small rearing tank and started feeding them right away with newly hatched baby brine shrimp and crushed veggie flake.

Retail Price

Eretmodus marksmithi is a rare fish that that is relatively hard to find. They are imported from time to time and if you are lucky to find them through the internet, expect to pay $25 to $30 USD per fish for tank raised fish, and even more for wild caught specimens.



Report August 2016 by Mario Toromanovic.

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