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  2. Recirculating aquaculture system - Wikipedia

    en.wikipedia.org/wiki/Recirculating_aquaculture...

    The first step of nitrification in the biofilter consumes alkalinity and lowers the pH of the system. [11] Keeping the pH in a suitable range (5.0-9.0 for freshwater systems) is crucial to maintain the health of both the fish and biofilter. pH is typically controlled by the addition of alkalinity in the form of lime (CaCO 3) or sodium hydroxide ...

  3. Lake ecosystem - Wikipedia

    en.wikipedia.org/wiki/Lake_ecosystem

    Lakes and ponds that contain bedrock that is rich in carbonates have a natural buffer, resulting in no alteration of pH. Systems without this bedrock, however, are very sensitive to acid inputs because they have a low neutralizing capacity, resulting in pH declines even with only small inputs of acid. [ 3 ]

  4. List of lakes of Michigan - Wikipedia

    en.wikipedia.org/wiki/List_of_lakes_of_Michigan

    Michigan's 20 largest inland lakes. This is a list of lakes in Michigan. The American state of Michigan borders four of the five Great Lakes. The number of inland lakes in Michigan depends on the minimum size. There are: 62,798 lakes ≥ 0.1 acres (0.00040 km 2) [1] 26,266 lakes ≥ 1.0 acre (0.0040 km 2) [1] 6,537 lakes ≥ 10.0 acres (0.040 ...

  5. List of freshwater aquarium fish species - Wikipedia

    en.wikipedia.org/wiki/List_of_freshwater...

    The Saddleback Loach will thrive in an aquarium with a good amount of water flow and aeration, considerable amounts of hiding places formed by rocks or driftwood and smooth pebbles and stones to graze on. [54] 68 - 78 F (20 - 25.6 C) [54] 6 - 7.5 [54] Dwarf botia: Ambastaia sidthimunki: 5.5 cm (2.2 in) Formerly named Botia sidthimunki. Bengal loach

  6. Sea Life Michigan - Wikipedia

    en.wikipedia.org/wiki/Sea_Life_Michigan

    Sea Life Michigan Aquarium is the state's largest aquarium [citation needed] with over 250 species and 2,000 creatures including sharks, rays, and green sea turtles. Exhibits include freshwater lakes, coral reef, shipwreck, an interactive touch pool and a 180 degree underwater ocean tunnel.

  7. Michigan Department of Natural Resources - Wikipedia

    en.wikipedia.org/wiki/Michigan_Department_of...

    Michigan's high number of registered hunters contribute $2 billion annually to Michigan's economy, excluding license fees. Through the sale of specialty license plates and donations, the Wildlife Division contributes to the Nongame Wildlife Fund which supports Natural Heritage research, education and habitat restoration projects to identify ...

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Marl - Wikipedia

    en.wikipedia.org/wiki/Marl

    Marl ponds of the northeastern United States are often kettle ponds in areas of limestone bedrock that become poor in nutrients (oligotrophic) due to precipitation of essential phosphate. Normal pond life is unable to survive, and skeletons of freshwater molluscs such as Sphaerium and Planorbis accumulate as part of the bottom marl. [13]