It perhaps will not come as a big surprise that the hobby sometimes ascribes common names incorrectly to species names. Tangerine Tiger shrimp are a case in point. Tangerine Tiger shrimp are almost universally described in the hobby as Caridina serrata, but actually they are Caridina cantonensis (much more on that below). Does it matter […]
Read more →Category: Critters
Aquarium animals: fish, shrimp, snails and other livestock—species notes, behavior, compatibility, and care.
I love my shrimp! It’s great fun watching them zoom happily around the Shrimphaus. The conventional wisdom in the hobby is keep different fancy colour morphs of the same species separate, so they don’t cross-breed and revert to “boring” wild-type colouration, but it is fun to experiment as well and if you’re not too fussed […]
Read more →Statement of Significance Freshwater aquarium shrimp breeding relies on empirical knowledge about which species can interbreed, but quantitative predictions of compatibility remain limited. We used molecular phylogenetics to measure genetic distances between 17 popular aquarium shrimp species and calibrated a breeding compatibility scale using well-documented hybridization outcomes in felids. Phylogenetic distances within Caridina ranged from […]
Read more →I thought the Blue Velvet neocaridina shrimp had all died off, but then suddenly, babies! There are at least 5 new little guys in the Shrimphaus. I have no idea where they came from – there is no sign of their parents. I gave them some protein flakes and they seem to be enjoying those. […]
Read more →Purple harlequin rasboras (Trigonostigma heteromorpha) are a colour variant of the very popular harlequin rasbora. A regular harlequin has a dark triangular shape on the back half of it. The purple variant has a much larger extent of this colouration extending forward and also more completely out to the edge of the fish. Shoaling upper […]
Read more →Here is a new baby Blue Velvet neocaridina shrimp in the shrimphaus. A berried Tangerine Tiger caridina shrimp does its thing on the left side with a pure red line caridina watching on. The zoom out at the end shows the scale. I thought the Blue Velvets were not doing well, but there are at […]
Read more →I wanted to get some different colour shrimp to help liven up the Shrimphaus but it’s not good to mix different colour morphs of the same species as the offspring will eventually wind up as wild-type colouration. Shrimphaus already has two different morphs of Caridina cantonensis shrimp: pure red line (PRL) and more generic crystal […]
Read more →I picked up some banded panchax, also known as clown killifish, for the Fireplace Aquarium. The local fish store (LFS) only had four of them and they were all female. This is because the males have showier fins so mostly that’s what people buy. Nevermind – I think the females look great. Friendly LFS person […]
Read more →Shrimphaus has always had neocaridina shrimp and more recently after switching to low alkalinity water there are caridina shrimp too. I noticed a berried female and started a ‘baby shrimp watch’ to see what would happen. Timing of shrimp baby hatching The new batch of stripy caridina arrived in the Shrimphaus on 4-Sep and I […]
Read more →‘Crystal Red’ caridina shrimp: top-down view on the edge of the river Bloody Mary shrimp (Neocaridina davidi) have been living in the Shrimphaus for a couple years now and are starting to get a little long in the tooth. Their solid dusky red colour also makes them difficult to see against the dark aquasoil and […]
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