changing substrate

[Invigor]

i was thinking of using a strainer or a net..there's about 30lbs of sand in there on one side of the tank so it's worth keeping.

these anemone's didn't really retract when i sprayed them..so i hooked an airhose up to a syringe and sucked about 20 out :|

and I used a bit of buffering stuff too, it's not kalk, it's seachem reef builder..same kinda thing?

and it wasn't boiling. it was hot tap water put in the microwave for 2 minutes..the bowl hurt to hang on to so musta been warm enough