Crevices. Rocks leaning against other rocks to allow for a small crevice that they can slip into. That's also where they'll spawn although my females like shells big enough for them, but too small for the male.
Plus one. Some even say the calvus will need a bigger tank to pair up, but then a single pair will do well in a smallish 36" rectangle tank.prov356 said:I missed the part about adding multi's too. I think the tank is a bit tight for 4 calvus and a multi colony.
If you've got backup tanks, no harm in giving it a try. Stack rocks up at one end and shell bed at the other end. Kind of like you've started, but more and higher.Is this type of thing pretty much a guarantee it will not work out long term?