I have been doing weekly water changes and have been using products that claim to eliminate amonia, nitrite, and nitrate. Yet my tests still show that the nitrate levels are way to high. Is there anything I can do to solve the problem?
.2. A primary purpose in aquariums and ponds is to protect aquarium and pond fishes and invertebrates by quickly eliminating (actually detoxifying) the harmful components of the biological nitrogen cycle - ammonia, nitrites, and nitrates ....