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I'm a veteran freshwater aquarist but I've never ever dabbled in saltwater aquaria. I need some advice. I've got a spare 20G tank and it needs to be filled. Does a tank as small as 20G really need a protein skimmer? Smaller skimmers are apparently expensive and ineffective, and larger...

Which biomedia is best? I'm setting up two Aquaclear 110s for my new 90G, and I've always used ceramic media, but since I've gone and run out I'm trying to decide what needs to be bought. In your experience, should I be using bioballs in each unit (and my DIY CO2 reactor) or is it better just...

I started with: 7 Cardinal Tetras 3 Schwartz' Corys 4 Blood Velvet Swords 1 Albino Ruby Shark I'm now down to 1 Sword, overnight. Three died in the last 48 hours, and I don't know why. Conditions can't be that far from alright, as apparently they spawned in the last little while. I've...

I'm having difficulty naming this plant. Can anyone help?

My Toronto municipal tap water fluctuates between 7 and 8.6- so there are days when filling up the tank is an easy option, and there are days when it isn't. Most of the time, it's on the alkaline side of 7. Since I had plastic plants in my 20G tropical, it's made sense to use Proper pH 6.5...

I'm looking for a decent and cheap dechlorinator. There are so many options available that I'm totally overwhelmed. My primary goal isn't anything but dechlorination.... I'm not looking to stop fin rot, halt nuclear arms, or make my filter 'happy.' I don't even know what that means, but...