Hi i was going to use my 65 gallon for eartheaters but have decided against it they can stay in my 180 gallon. I want to keep discus i really like the wild strains with heckels being my favorate. Can you give advice on how many to keep can i put tetras in with them or not advised, water from my tap is very very soft but a little alkaline, whats the best conditioners to buy, whats the ideal temperature and anybody know a good aqaurium in melbourne for wild discus or even online.Also i have pool filter sand just a very light layer and one piece of malaysian red mangrove with a black back ground, for filtration an eheim 2217.