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Does anyone know the proper way to prune Cabombas? They grow like weeds and take less than a few weeks to grow to the top of the tank, and then across the surface to the other end. I have tried cutting off the tops at the desired height, but found that the point where I had made the cut...

It is my understanding that limestone can have the effect of lowering the pH of the water, but I was wondering if anyone knows whether slate has any effects?

I have been trying for some time to get my cardinal tetras to come out from hiding and swim in the open, with no success. I changed from fake to live plants, purchased testing kits to monitor the water conditions, and purchased other fish that I was told would socialize well with cardinals. I...

I’m rather curious. Most people here recommend having 1.5 - 2 watts per gallon (roughly) for a planted tank. I couldn’t afford to upgrade the lighting in my 20 gallon, and so have stayed with the 15 watt bulb that I have. Many of the plants in my tank have been growing like weeds, and all...

Where to begin? My tank had finally seemed to finish cycling a few weeks ago. The ammonia levels, and nitrite levels were down to 0. Then my tank was hit by a bacterial infection, and I lost over half my fish in the span of 2 days. There was no warning. I would leave in the morning and the...

I was wondering. Would it be possible to keep several single males from different peaceful varieties of gouramis? For instance, would it be possible to keep a Dwarf Gourami, with a Honey Dwarf Gourami, and a Licorice Gourami (for example), all in the same tank? Or would this cause problems?

I will have just about completed populating my tank this week, but am looking for a couple of fish to finish it out. I currently have a couple of cardinals (will be getting a few more shortly), a couple of columbian tetras, and a couple of silver tip tetras. I’m looking to get a fish that wont...

Hi. This is a rather desperate plea for help. I have had a 20 gal tank for several years now. Fish have come and gone, and I didn’t look after it the way I should have. Recently I decided to make a serious go of looking after my tank. I have had 6 cardinals that have been with me for most...

It has become fairly apparent to me that either my columbian tetras or my dwarf gouramis scared my other fish from eating (cardinals and black phantoms). In my research on the web I hadn’t found anything to indicate that either of these fish would be a problem with peaceful tank mates. Even...

Two days ago I came home to find two of my cardinals dead. What really bothers me about this is that I have had them for the better part of two years, through the good and the bad – including moving to a new apartment. I checked the water, and everything seemed fine. I did a partial water...

I recently exchanged the plastic plants in my tank for live ones. I didn’t change the substrate or the filter, thought I did dump most of the water in order to facilitate me moving the tank to a new location in my apartment. In the week since setting it up, I haven’t noticed any ammonia...

Hi. My wife was thinking about keeping a single goldfish in a small, non-aerated tank at her desk at work. We went to our local pet store to look at the goldfish, but were surprised to find that they all had maximum growth limits at 8” and over. I have couple of questions. 1. Will the size...

After planting my tank this past weekend, some of the plants have been floating up out of the substrate (I took them out of the bundles they were sold in, and planted them by their individual stalks). They have all been the soft-stalk plants such as the cabomba and bacopa. The bottom of the...

I posted this in the begginer forum, but it was suggested I should post it here instead. I just started a planted tank. Before this my tank had simply contained plastic plants. When I went to buy plants from my lfs, I listed all the things I had picked up to get my tank ready for the new...

I just started a planted tank. Before this my tank had simply contained plastic plants. When I went to buy plants from my lfs, I listed all the things I had picked up to get my tank ready for the new plants, and asked if there was anything I had missed. The person working the fish section...

Hi. I have 8 cardinals and 1 pepper cory in my 20 gal aquarium. I have had these cardinals for the better part of 2 years now. Previously they were in the 20 gal with other friendly fish, but I had decided that I wanted to have a tank with purely cardinals. I have read that cardinals prefer...

I just have a couple of quick questions. The first pertains to lighting. I have read that one should use a light that emits about 1 watt per gallon of tank water. Is this right? The light I have came with the tank when I bought it as a start-up kit. It is a 20 gallon tank that is 24” long, 12.5”...