2 Most Common...

[Reefland]

What do you think are the 2 most common mistakes made that cause an ailing fish?

[almostdiva]

• Poor or innapropriate tank conditions (like keeping a Rock Beauty Angel in anything but a mature reef w tons of LR, or keeping an adult volitan lion in a 30 gal tank or shy fish like firefish with triggers)

• overstocking or other conditions that lead to poor water quality

Rebecca

[leebca]

GOOD TIMING

1. Not providing the fish with ongoing proper nutrients;
2. Putting the captive fish through unnecessary stress in its environment.

For an elaboration on 1. See my latest post:
Feeding Marine Fish and Fish Nutrition

[smidoid]

• Not quarantining new stock
• Not checking new stock for "freshness"

[cichlidfort]

1. Not Doing your homework on the fish
2. Bad water quality

[John Hamilton]

Tipping the tank over.
Using Epson Salt.

[dvmsn]

1. Inter-fish aggression, poor compatability selection.

2. Buying fish that are not acceptable for your tank or your level of experience.

[rjs5134]

Gotta go with:

1. No Quarantine
2. Innappropriate choice for tank or tank-mates.

I think review of other threads proves both and haven't we all made these mistakes atleast once?

[Steven Pro]

1.) Cycling issues or stocking too quickly.
2.) No quarantine

[leebca]

Are you sure Steven?

The question was 'mistakes that cause an ailing fish.' You see, I took the question literally.

Quarantine or not doesn't cause an ailing fish. It is an opportunity to cure a diseased, injured or sick fish, but quarantine one way or the other doesn't cause an ailing fish.

Your 1) is a part of the environmental category and seems good.

[BubbaWPB]

Not observing the fish at the store to make sure it's not ailing when you buy it.
Poor tank maintenance.

[Steven Pro]

I was thinking more along the lines of the most common mistakes that lead to deaths.

[BubbaWPB]

I was thinking more along the lines of the most common mistakes that lead to deaths.

Drinking and driving?

[leebca]

Bubba, Bubba, Bubba. . .

Fish don't drive. . .How about:

Drinking and swimming?