I placed the Eheim Power Algae Scraper base unit in the handle, turned it on, and started to push it straight down the glass, from the top to bottom. It powered its way through the algae in a single pass. I had to keep it at about a 30 degree angle, and it only seemed to work on a downward stroke, not when dragged “backward”. The blade pivots so you have a little margin of error as you press the blade against the glass. As I scraped away several week’s worth of algae, I could not help but be impressed with how well the Eheim Power Scraper was working.
Ever since the early days of aquarium keeping, hobbyists have been using air pumps and air stones to introduce oxygen into the water. It may seem that the oxygen would enter via the multitude of air bubbles, but actually most of the oxygen enters at the surface of the aquarium water and the air stones help by bringing up a column of water with the bubbles and turning it over from the bottom to the top of the water. The air stones also help prevent stagnant areas from developing where the water may become oxygen deficient.
One of the newer fish foods offered by PetSolutions is the product line of Cobalt Foods. These products are manufactured in the USA and made in smaller batches to always ensure the potency of the added vitamins. Cobalt is one of the few foods that recognize that marine fish cannot convert PUFA’s (Polyunsaturated fatty acids) to HUFA’s (Highly unsaturated fatty acids) and that these important compounds must be included in the mix of the food.
You say you want a tank with colorful fish? You say you want a tank with a lot of activity? You say you want a tank full of very hardy fish? If that is the case, then a tank full of African Cichlids is what you want!