bio spira

I used biospira when setting up my 50g tank. Followed instructions, added all the fish (several kinds of plecos, rasboras, and a female betta). Three days later I tested the water and ammonia was at 2ppm! I quickly began water changes as necessary, and the cycle was absolutely complete in a week and a half, instead of 6 weeks. It works, but it's not a miracle product. I am glad to see you are doing your research before, instead of after (like I did).
 
well i checked the lfs and they have it. its about 12 dollars, treats up to thirty, which will work for me. so i set everything up (filter, heater), then we'll say the next day, add the bio-spira, add fish, then do tests? I just dont want to end up with dead fish!
 
i think it is worth the investment, as long as you are prepared with test kits and the knowledge that you will probably have to do a little bit of work to establish your cycle. you are right, add bio-spira and fish at the same time. part of my problem may have been that i drove 2.5 hours home with my packet of biospira in a little plastic cup of ice water to keep it cool.
 
well out of the following fish, which have the best chance of surviving:
bloodfin tetras (which may change to tiger barbs or serpea tetras), cories, dwarf gourami?
 
if you test your water and do water changes as needed during the cycling time they should all do just fine. even "hardy" fish will have their lives shortened by exposure to too much ammonia and nitrite.
 
well out of the following fish, which have the best chance of surviving:
bloodfin tetras (which may change to tiger barbs or serpea tetras), cories, dwarf gourami?

Can't tell you who has the best chance but the dwarf gourami probably has the worst chance. Google "dwarf gourami disease".
 
Filter/media/sludge transfer is the only true way to instantly cycle a tank. You have to add enough to fully support the new tank, however.
 
well out of the following fish, which have the best chance of surviving:
bloodfin tetras (which may change to tiger barbs or serpea tetras), cories, dwarf gourami?

If you want a "community", I'd steer away from the Tiger Barbs.

Regardless of what you add, don't do it the day after. Test and make sure that you're fully cycled first.
 
With used media(1 filter pad from my cycled 55gal) along with a decoration I removed from the same tank,my 125 gallon cycled in a week,with the addition of ammonia.

I added enough ammonia to get 3ppm,put a used filter pad in the flow of my new filter,threw in a decoration and tested it every day. The ammonia stayed steady for about 3-4 days. I then went and bought Bio Spira and was going to put it in my tank last Friday. The tank never showed Nitrites but ammonia went to zero and the NitrAtes were at about 10. I kept adding ammonia for the next couple of days,and it would always go back to zero in a relatively short time(4 hrs or less)
So I did a small water change,added the Bio Spira and put in 7 Rasboras and 2 of my Cory Cats.
So far all my parameters are fine and I plan on starting to move some of my 9 Discus into the new tank this week. I think I am only going to put in 3-4 @ a time to avoid a big increase in Bio load and spike the tank.

Good luck with yours
 
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