This product is great for new aquariums?

Recently I asked a question about an algea bloom in a 5.5 gal fish tank housing one cichlid and a pleco. Thanks for the replies but my husband solved my problem, in an odd sort of way.

One day he's putting the dishes away and drops a cup, it bounces off the granite counter (not broken), taps my fishtank and the tank cracks. All the way through. Water starts weeping out slowly. It kept overnight but I was forced to buy a new tank the next day.

So, off to the store I went. Armed with a new tank, some product to hopefully make the water safe so my fish doesn't die and a new thermometer (the old one was stuck to the old tank glass), I went home to disassemble my tank.

Jeff and Rupert (the two fish) didn't care much for sitting in a goldfish bowl while I obliterated their tank but they had no choice.

The product I bought was called AquaSafe. It comes in a bright yellow bottle and you only use just a small amount (for a 5 gal. tank anyway). Despite what the bottle claimed it could do, I thought for sure I'd see Jeff and Rupert floating belly up from shock within 30 minutes.

But NO! This stuff worked superfast, my fish are happy in their new tank and all is right with the world. So if you're ever faced with this dilema, use that product. I have been a firm user of Cycle to start tanks and for water changes, but this stuff is great for emergencies.