Nitrates. How Much Is Too Much! by Jack Trebnio There are many notions as to acceptable levels of nitrates. In fish only aquariums with large predatory fish, reports of 600-ppm levels at public aquariums without noticeable consequences seem acceptable. Things change very quickly when we start looking at delicate species such as butterflies, fairy wrasses, […]

Algae & Phosphate. When Water Changes Are Not Enough! by Jack Trebnio Many aquarium owners find themselves in a situation where the more water changes that they do, the quicker the algae grows. While there is no substitute for good husbandry practices that include small regular water changes and careful feeding, there are alternative to […]

PRODUCT REPORT By Don Dewey POLY-BIO-MARINE, INC. POLY-FILTER January, 1978, was the cover date of the first issue of Freshwater And Marine Aquarium magazine. That premier issue also contained our first product evaluation of a consumer product – the Poly- Filter® by Poly-Bio-Marine, Inc. At that time the concept of product tests were viewed as […]