My FIRST tank was even worse. Bought everything for the 10 gallon tank, AND about 15 fish including, Rainbow shark, Koi, neon tetras, cherry barbs, platys, GLO danios, Dwarf Gourami, and Bala sharks. Put the ten gallon together, without cleaning off any decor, or rinsing anything. Just used tap water and dechloribator. The next morning (6 hours later) they were all either dead or dying. I thought it was a PH problem, so I continued to dose PH minus until they were all dead, as well as clarity, because the water was so cloudy. Petsmart replaces your fish within two weeks, so for the next week I killed probably 25-30 fish, until they miraculously started to survive past a day.
Please don't judge my shame, when your young and excited about something, You just dive right in, and don't think. At least I did/do.
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