Hello everyone I have a lightly stocked 20 gal with two cories and 6 neons and a revolving door of guppies. No matter what I try the guppies don't last more than a week whereas all the other fish have been fine since I put them in. I have used the equilibrium I use for my shrimps in, tried a bit of salt (not too much cause that would harm my cories), turned off the heater and let it run at room temperature, everything I could think of to make these guys happy. Just lost my almost ready to burst with babies female so I am quite upset and close to giving up on guppies and trying an easier "starter fish". Any ideas how I can keep my one remaining female guppy happy or what fish I should try and swap to?