One of my daughters is in a four year horticulture program at her high school. As a project for that we're going to start a small Walstad/natural planted tank, either a 5g or 10g. Other than white clouds what fish do better in lower water temps?
Yes that's right! I remember keeping an aphyosemion gardneri without heater... God I hated that creature, he would bite the tails of zebra danios at night!