Carbon is good once your tank is "set". During a cycle, I like to let it get nice and stinky through the cycle. Then do a 25% and a week later do a 30-40% water change to clea everything up and get a good bio filter going. After that, you can/should run carbon to keep the water clean.
Fav cycle method = Dead shrimp(1 per 50g) + pumps/heaters going + Powerheads going + Lights off + Skimmer off + Reactors/dosers Off. Even with 90% dry rock the tank will cycle in 4-5 weeks.
Fav cycle method = Urinate in tank + pumps/heaters going + Powerheads going + Lights off + Skimmer off + Reactors/dosers Off. Even with 90% dry rock the tank will cycle in 4-5 weeks.
Fav cycle method = Urinate in tank + pumps/heaters going + Powerheads going + Lights off + Skimmer off + Reactors/dosers Off. Even with 90% dry rock the tank will cycle in 4-5 weeks.