Is my fish dying?


My orange Glofish Tetra (Hercules) started acting weird the past few days. He finds a spot to sit so he doesn't have to swim, I haven't seen him or any of the others do this before which is concerning. I'm worried he's dying.. when you raise your hand to the glass he doesn't react like he used to, or hide like the others..





Fill out as much as you can.
  • Thread Starter


SouthAmericanCichlids said:

What is the water volume of the tank? 10 gallon
How long has the tank been running? A few months
Does it have a filter? Yes
Does it have a heater? Yes
What is the water temperature? 80.8F
What is the entire stocking of this tank? (Please list all fish and inverts.) 5 Glofish Tetras, 2 amazon swords, a fake plant, a tunnel, and a reef looking structure.

How often do you change the water? Every week to every other week.
How much of the water do you change? 1 gallon
What do you use to treat your water? Aquasafe plus water conditioner.
Do you vacuum the substrate or just the water? Substrate.

*Parameters - Very Important
Did you cycle your tank before adding fish? Yes.
What do you use to test the water? The pet store tested it for us.
What are your parameters? We need to know the exact numbers, not just “fine” or “safe”. Right now don't know, we don't have testing strips


How often do you feed your fish? Every other morning (someone else is holding them for a couple weeks while we move)
How much do you feed your fish? A couple pinches.
What brand of food do you feed your fish? Topfin tropical flakes.
Do you feed frozen or freeze-dried foods? No

Illness & Symptoms
How long have you had this fish? A couple months
How long ago did you first notice these symptoms? Yesterday
In a few words, can you explain the symptoms? Not as active, finds a place to sit and doesn't swim.
Have you started any treatment for the illness? No.
Was your fish physically ill or injured upon purchase? No.
How has its behavior and appearance changed, if at all? Less active.

Explain your emergency situation in detail. (Please give a clear explanation of what is going on, include details from the beginning of the illness leading up to now) explained in original post


Could be related to ammonia, nitrite or nitrate toxicity. Are the gills red at all? Has he been eating? The pet stores don't have any idea what "good readings" are or what a cycled tank reading's should be. Do you know about the aquarium cycle? For now I would do a large 50-75% water change and do another in a day or two. If he perks up, keep doing 50% water changes every other day. Get your hands on API freshwater master kit to test ammonia and nitrite levels.

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