Headcount for hiding fish?.

Years ago I lost a kuhli loach for 140 days before seeing him again- that may well have been because he was a solitary individual- I now know they do much better in groups, but back then I didn't...
 
Yes me/us too, it was a shared tank and the single KL was not mine. Hid in ornaments and was rarely seen. I do remember how that fish was extremely hardy.

On that note...I was seeing these almost every time I looked into the tank.
If they were not together in the corner, one or two would be off climbing in the plants.
Partly because I have a group and partly because my tank is so heavily planted that it gives a lot of cover. Seems like people who keep them solitary or maybe without enough hiding places are missing out on their more interesting and active behavior.
 
You don't mention whether you quarantine your new fish. If not, I would certainly start. A month or so in a quarantine tank would help to eliminate disease problems as a reason for a new fishes disappearance. Beyond that I consider the temporary "disappearance" of a particular fish to be one of the enjoyable aspects of a heavily planted aquarium - it is such a pleasant surprise to see a long absent individual suddenly appear! To me it is an indication that they are pleased with their environment. They enjoy their privacy. If you need to take a complete census frequently, better to purchase inhabitants who prefer being out in the open than to disturb the aquarium or take away hiding places. Do I worry sometimes about the striped rafaels that I haven't seen for months? Sure, but I do see as many as two at a time (of the four that I have) and I do know that my fish are all compatible and healthy - those I can see anyway.
Beasts
 
Because I was an idiot and thought since the tank is empty and the only fish living there has been moved, why not put them right into the main tank.

No, I don't like fish vanishing when something mysterious has been killing them because then it'll mean they are sick, dying or dead. Concerning a small tank with less stable water conditions, a dead rotting fish is a bad thing.
 
I introduced a new pleco last week, and after the first days he disappeared. after a few days of not seeing him, i got worried and started hunting for him. tore the tank apart, nothing, completly gone; i was sure he was dead despite being healthy in the qt tank. last night, i got home and had a pleco pile with the whole crew laying together including my new one I hadn't seen in a week. seems to be in perfect health, just a real hide artist.
 
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