Join Date: Mar 2014
Location: Los Angeles, CA
Depends on the size of the tank. If it's 10 gallons or above, then no, since the parameters have a much smaller chance to shift.
Make sure to have plenty of plants to take in those nutrients as well. Under planting might exacerbate the situation.
I EI dose on my 20 long with 100+ PFRs and their colony is thriving.