undbulsu
Aquarium Advice Apprentice
I am trying to build up a school of about 20 cardinal tetras for an upcoming discus tank. I have had cardinals before, and no matter where I purchase them from I seem to have about a 25% die off before I even get them out of quarantine. I am following all the rules for acclimation, even to the point of setting up a drip system to slowly change the water.
And it always seems to be the more "healthy" appearing fish. Brighter colors, deeper red, etc. Is is hormones? Are they injected? Do they just not ship well? Any tips?
And it always seems to be the more "healthy" appearing fish. Brighter colors, deeper red, etc. Is is hormones? Are they injected? Do they just not ship well? Any tips?