my 46 Gallon

[michika]

Assuming your not color blind, you'll see the aptasia turn purple within a little while, say 30 minutes of injection.

This is what usually happens when I did it:
1) Aptasia is out and mocking me.
2) I sneak up on it and jab quickly so I can get the needle tip into the stalk before the aptasia retracts.
3) I pump it full of a bit of lemon juice.
4) I wait and watch, if I failed the aptasia will come back out, its usual color, still mocking me. If I was lucky they usually turn a purplish color, are swollen looking, and then they start to shrivel and disintegrate.