You've used algae dystroyer with fish and it worked
Good for you, glad to know you know enough about what you're doing to get that to work.
If I recommened it to any of my customers, they'd probably use it incorrectly and kill their tank then blame me. Most algaecides come with clear warnings on the lables that say in huge letters "DO NOT USE THIS PRODUCT WITH INVERTABRATES OR LIVE PLANTS." I don't know enough about live plants to know how to dose it so as not to kill them. I just read the lable and follow directions, and from my experience, the directions on the lables clearly say do not use with live plants and the dosage was strong enough to kill my snails off, so I don't know what type of damage plants would've sustained.
I was very angry at the death of all those poor, innocent snails. *pout* They did a better job of keeping the tanks clean than the algaecide in the first place.
And yes, I will admitt that it is possible, under certain conditions, to keep goldfish with tropical fish dispite the totally opposite polarity necessary for their respective care. I have done it myself. But I know for -fact- that "feeder fish" (the usually 10 cent goldfish you are refferring to) are not the healthiest or as disease free as one could wish, and it is a terrible risk to stick them in with a community of tropicals. Yes, some shops take care of their feeders. Majority of shops do not. If you cannot personally see the state of the feeder vats (my vats happen to be on my salesfloor, so I have to keep my 3000 feeders crammed into a 90 gallon space drinkable clean or else it would be a disgusting display to have before customers. As it is, I get grossed out having to just work next to the thing, and I know I just cleaned it!), I would not personally put those fish in with anything else unless quaritined and mediated. Even an apparently healthy fish may not be.
Hey, but whatever works for you.
~~Colesea