I rehomed some corys ( Julli, adolphi, bronze) as I lost a few and I assume overcrowding is the reason, so a friend with a new 5ft setup has given them a home, she's had her eye on them for a bit, so I shall get more in years to come, pygmys and peppereds seem happier and more visible. think I made the right decision now as the others have settled in well at their new home too.