Good info. Thank you. If i come across a bottle maybe i'll try it.
At the moment things are going well...
brought the parameters to,
pH: 6.8
Temp: 2.90c (nothing i can do in our tropical country except chiller if needed, but currently on Fire Reds)
TDS: 300
gH: 7
kH: 0
Ammonia: 0
Nitrite: 0
Nitrate: 10+
Thanks all for now!