Advice re RO or water purifyer, I normally stick to just good water changes- Can anyone advise benefits of either.
Currently age water 24 hrs aerated adjust PH to breeders and do 20-30% every 3 days 7 tanks, numerous soawns to wrigglers but numbers diminish day 1 wrigglers to day 3.
Tried leaving sponges alone (slight rinse in same aq water) weekly, run cannisters on 2 breeding tanks don't know if this is very beneficial.
PH 6.5 or lower, temp 82-84, no ammonia and need to get of my behind and buy test for nitrates, is there an easier test for nitrates?eg electronic?.
Only use aquasafe to aged tap water.

Thanks in advance-Colin M