I've only been fishkeeping seriously for a year (my first 4L aquarium with a goldfish I got one Christmas as a kid doesn't count nor the 5 gallon my grandpa had) and I'm still learning everyday.
What is one thing you wish someone told you when you first got into the hobby?
Mine is quite stupid but fish need air...
Now obviously I knew that. But I did not anticipate the critical necessity of an air pump (or surface agitation) for some fish. I always saw bettas surviving in a cup and assumed all fish can somehow gulp air from the surface. This error cost me 2 blood parrots.... Of course I since learned what is labyrinth organ...
What is one thing you wish someone told you when you first got into the hobby?
Mine is quite stupid but fish need air...
Now obviously I knew that. But I did not anticipate the critical necessity of an air pump (or surface agitation) for some fish. I always saw bettas surviving in a cup and assumed all fish can somehow gulp air from the surface. This error cost me 2 blood parrots.... Of course I since learned what is labyrinth organ...