You should invest in a dosing pump and you wont have to worry about dosing ferts.
I have been thinking about doing that but i enjoy the daily "hello fishies!" routine, especially with the baby angelfish I just picked up on the weekend. So cute!
Kind of tempting
Lol, I do like angelfish - always up to something and not hiding away.
The yoyo loaches are great but always off chasing their tail or something.