fishfanatic2":ee1qclhu said:Brackish would be below 1.000, i think. Fish prefer a slightly lower salinity(1.019-1.025), and they are less susceptible to disease at that level. Inverts, however, prefer a sligthly higher salinity (1.024-1.029), so the trick is to keep it around the middle point of those.
BTW corals are included in 'inverts.' :wink: