Good evening Anti, apologies for I was gathering enough information to answer your questions as accurately as possible. I personally know more about snake care, so this was an interesting challenge. Since “knife crab” is not a species of domesticated crab, I am going to assume it is a fiddler crab. Although I suggest going online and trying to figure it out yourself as I could be wrong. This ask is split up *~%
Fiddler crabs need aquarium salt in their tanks in a gravity of 1.0005 and 1.010, you can check this with the hydrometer I provided. Yes it’s a real thing. I suggest you use the heater I provided last time and try to keep it between 75 and 85 degrees Fahrenheit. Make sure it doesn’t get too cold while your gone as that could be dangerous.*~% They can be fed sinking food pellets, shrimp pellets, freeze dried plankton and shrimp, as well as frozen blood worms and a slice of zucchini every once in a while. This species also molts, and when it does you should leave it in the tank as the crab might eat it and regain a lot of calcium. I’ve provided the salt, heater, hydrometer, and a few of each food item, but you will have to get your own after a bit.*~%
I couldn’t find anything about toys but I suppose you could get some more ornate rocks for them to climb.According to my research you should not feed it sushi. Please don’t do that. Hope this was useful to you, and may I suggest naming the crab Eno, meaning strong with the sword in German? Any who, hope your day of which you became canon was pleasurable. -Logical Anon *~%
-----------------------------------------------------------------------------------------
-It’s taken him a LONG time to get through all this, to read it all and get it all put together. To jot down the information and make use of it. There’s not much of a response, other than a slightly out of focus photograph of the Terrarium and a second image of the crab itself with a newly gifted name. It seems that despite not saying anything, the glitch is grateful for this new information and the newly dubbed Mr. Stabbs is in a nice happy new home-