Originally Posted by Secios
Hi i have another question, during the cycle peroid, should i use plants ? And if the pet store after 3 weeks says that my water is bad, i need to start it all over ?
Plants are fine during the cycle period. And as far as your water being "bad," what parameter(s) are bad? The big things to look out for are ammonia and nitrite which you want at zero. Beware of notrates as well. You'd like those at zero, but unless you are keeping more sensitive species, as high as 10ppm isn't too awful.
How are you cycling your tank? Many who don't know any better think that cycling is just letting water circulate, but what you are trying to do is grow a bacteria bed. This take a food source to produce ammonia. This can come from chemical ammonia, a dead shrimp, or fish waste. Most folks recommend against the last one because it takes a living fish to get fish poop, you essentially have a pet being tortured by swimming in its own waste during the cycle period.