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Why is my fish not eating and inactive? Is it sick or underfed?

Updated On September 23rd, 2025

Pet's info: Fish | Unknown - Fish | Male

My rainbow albino shark is slow to grab the food...now it is a little bit inactive...is this a sign where in it is under nurish...?thank you for the reply already...bless you guys...

1 Answer

Most Helpful Answer

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Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on July 31st, 2017

Unfortunately this is a very generic sign and a radical approach must be followed in these cases to find the problem. Begin by submitting a water sample for quality testing. Most pet stores will do this for free or a nominal fee. High ammonia levels, PH imbalances may be responsible for that. Oxygen concentration and quality of the filters should be determined as well. If water quality is good and there are no major imbalances, your Fishy should examined to look for any sign of bacterial/fungal infection and eventually water should be treated. Please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

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