Definitely lots of debate over ESTABLISHED tank water changes. Usually weekly is good. During cycling though....jennypenny said:Personally I like to do smaller weekly water changes. It makes feel secure that I won’t accidentally shock the fish with any kind of temp. or chemical change. Certainly there can be some intelligent debate over the best frequency or amount of water that should be changed.
Exactly what I've always read. During a fishy cycle, you'll have to change water every day to keep the ammonia & nitrite (both poisonous to fish) down to a reasonable level (<1ppm...some people say keep it down closer to 0.25ppm).jennypenny said:However, water changes are great during a fishy cycle. You shouldn’t really be slowing down the cycling process. This is because most of the bacteria you want or going to be in your flitter and substrate. There are some bacteria in the water, but you will leave plenty inside your flitter.
Agree again...in CAN happen (usually using seed material from an established tank). MOST LIKELY it will take longer...a LOT longer IME.jennypenny said:I do want to say that a cycle can happen in a week, although do not plan on it happening that fast. Most likely it will take longer.