Learning is never a waste! (Although college tuition is cheaper than fish breeding, at least at CA community colleges.)
I'm redoing my reef tank, so as soon as the baby clowns are gone I will be doing some musical fish tanks just to go ahead and deworm everyone and let the main tank lie fallow to kill off any nasties that might come in on the new live rock (or any that have been sneaking around the tank).
Then we'll see if I am up to another batch of gobies... and I'll also know exactly how long it takes these gobies to grow up!