I have a dwarf puffer 10g and a community 10g with danios and cories. I put a piece of zuccini in each tank. I only saw one oto eat of the zuccini... what happens... one oto dies. Same day, 2 of my cories mysteriously die. Ammonia and nitrite at 0... all the other puffers, otos, danios and cories are acting fine and healthy. This stinks!
Nik
Nik