05-17-2012, 11:34 AM
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There are several species that require warmer than normal tank temperatures, and there are many that will not be healthy at such temperatures. If you check fish species in our profiles [second tab from the left in the blue bar across the top of the page] you will find the temperature range for each species included in the data. The other parameters of GH and pH are obviously crucial too, so knowing your tap water GH and pH will help you narrow down the suitable species.
When reviewing the temperature range, remember that fish generally do best at the mid-range given. At the higher end they may manage, but their physiology is faster at warmer temperatures since these affect digestion, their homesostasis, immune systems, etc., so it is best not to push the envelope so to speak.
And, welcome to Tropical Fish Keeping forum.