Sorry...I did not mean to imply that actvated carbon would absorb Nitrogen compounds. Merely that it would help rid the water of disolved organics and other polutants in the water under normal conditions. One should rely on the biologcal filter to maintain the nitrogen cycle. If a "crutch" is needed ...

Good to hear that....Have u ever thought about adding a good Chemical/Physical filter to help out your ehiem. I usually run aquariums of your size with a Fluval (fully biological) and a magnum 350 for the physical and chemical filtration. That way u can get more bio-media in your ehiem and will be ...

Unfortunate circumstances to say the least. Melafix is an organic anitbiotic that i have had some success with. Pimafix is an organic antifungal. Both are put out by Aq. Pharm. I have had 9 RTC's under my care for @ 2 years. They range in size from 18" to close to 3 feet. I feed them fresh fish once ...