I started a fish aquarium about 3 weeks ago. I have done fish aquariums most of my life with no trouble at all. Now about 2 weeks into the aquarium, like 4 of my fish have passed away and I have noticed some brown spots in the aquarium on the sides and all over the aquarium. This is the first time I have had fish die. What can I do?

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Chicago carpenter | Chicago tile

*Sorry , I have just assumed you did not cycle the tank first?

Take a look here Beginners Resource Center - Tropical Fish Forums, by putting fish into a brand new set up is cruel, (not your fault, as you probably listened to the pet store)

Please really read about cycling a tank, without doing this, the fish will keep dying due to ammonia poisoning.

Loops x

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