Had the tank for 3 months, was fully cycled, 340l.
ph 7.5, 0ammo, 0nitrate, 5nitrate, temp fluctuating between 24-26oc due to weather.
lost 1 femail molly 2 wks ago, replaced her & added 2 dwarf gouramis & 20 neon tetra.
fine for a week, although male gouramis was being bullied by male molly...