anomone help

[Delphinus]

Heteractis crispa don't really attach with their pedal disk, but hold open in place with their verrucae.

Their preferred substrate is very deep sand, much deeper than practical for most tanks unfortunately. However in a pinch, a deep crevasse in rock should work as a substitute.

When I kept this species it had its foot into a 2" crevasse, extended down at least 12". It would open up about 14" across. Literally it was held in place by inflating its pedal disk against the crevasse.

Without something to brace themselves properly, they will literally float around in the current. This could spell disaster if they encounter a heater or pump/powerhead intake; so be very judicious about ensuring it is settled into a spot that is satisfactory to the anemone.