nitrogen cycle

Hello MFK! Anyone who's seen my posts knows that I have a 90 gallon tank with a leopard ctenopoma, and six keyhole cichlids. (two of which have paired) I cycled the tank itself in The summer, and added the fish to the tank in July. Until now, there have been no issues with water quality at all...

Hey all - Long time lurker, haven't had tanks in about 5 years now. Had multiple tanks in the past (5-150 gallons). I've never had a planted tank, and I haven't had to cycle a virgin tank in a LONG time. I've purchased a home & am about to start setting up the tanks again. My question is this -...

If anyone has read one of my last posts, ALL FISH DEAD IN ONE NIGHT, you saw that I did not properly cycle the tank and the fish died. So it has been 3 weeks since the fish died and I have done anything to the tank. I haven’t even looked at it since then. So, I went back to “start the nitrogen...

So, im using big natural rocks as decor in my tank. i washed them thoroughly with hydrogen peroxide, and then rinsed them and dried them before placing them in the tank. I've been using them for a few weeks now and i havent had any problems. But there is one thing. Moss started to grow two of...

Guys, I am having a 75gallon tank with 2 eheim 2217 filters, only one albino silver aro '12inches' is present in it, the tank was cycled and had only nitrates at 20-30ppm range earlier. I didnt clean the eheim filters for almost 6 months and now even after cleaning and rinsing the media in both...

I have 2 tanks with me that aren't so new. My first tank is a 40 to 50 Gallon tank that has 1 Red-Tip Arowana and a Janitor fish. My second tank is a small 15 to 25 gallon tank that has a Flowerhorn named Camillia. I just heard about Nitrogen Cycles in a Flowerhorn related thread that I've...

Hi, I'm trying to cycle my tank with Dr. Tim's One and Only. I used an 8 oz bottle (entire bottle, shaken and inverted) for a 20g bare bottom tank. There is a lot of sediment at the bottom now. Is this normal? Can it harm fish? If I remove the sediment, will that slow the cycling process...

Hello, so ive recently purchased a 65 gallon tall. Its been running for about 4 days. New filter on it, but right away i put a filter pad from an established tank that i have running. I also added a bacteria supplement to the water. Plan to move the entire existing filter to this tank when its...

Hi everyone! I recently purchased a new 75 gallon tank. I added two top filters that are supposed to handle around 70 gallons each. I was looking into using this as a grow out tank for an arowana before it goes in a pond. I've set up quite a few tanks already (currently have a 55 with a couple...

So I have my new 75 gallon sitting in my room and I am letting the filter I bought for it (Quiet flow 55/75) run on my established 50 gallon which uses an aquaclear 50. my questions are 1. If I let the filter cycle and then attach that to my 75 along with many rocks, plastic plants, and gravel...