INPUT ARTICLE: Article: Go with a 20USgal (76L) tank, which is big enough for plants and animals to thrive in, but not so big that it is a pain to clean. This amount of water actually requires less energy to maintain than smaller sized tanks! Although a tank under 10USgal (38L) might seem like it would take less effort, it's actually a lot of work keeping the water at the right chemical levels. The smaller the tank, the more quickly the quality of the water can change due to evaporation and waste. Research all fish you are considering buying and make sure they don't grow very large. Small fish are just as pretty and interesting as big ones, but they produce a lot less waste. Smaller animals are usually more active for their size and they have the added benefit of requiring less work to care for. Good examples of small fish for saltwater aquariums include goby, chromis, and certain types of clown fish. Small fish will have room to swim and stake out little territories comfortably in a 20USgal (76L) tank. They are better for a low-maintenance aquarium and for the environment. This is because in most cases they reproduce well in captivity or are plentiful in the wild. They tend not to die on the way out of the pet store and will not take a lot of extra care to keep alive. The reason that cheap fish, invertebrates, and corals are better for the environment is that they are usually bred instead of being taken from the wild. Taking these animals from the wild can cause environmental degradation. Generally this includes soft corals, which are like masses of little anemones without much of a sting. High-powered light consumes more energy than anything else in the aquarium. It also encourages the growth of microalgae and coralline algae, which are difficult to scrape off the sides of the tank. Some good items to choose include polyps, soft corals, leathers, and mushrooms. More light also produces heat, which can require a chiller to remove from the aquarium and more air conditioning to remove from the house. Make the aquarium colorful with a lot of macroalgae and soft corals and relatively few animals that move freely, such as fish and shrimp. If it doesn't move, it doesn't produce much waste, which will reduce the amount of cleaning you need to do. However, some hermit crabs and snails are worthwhile for eating microalgae and stirring the sand. A large amount of macroalgae, live rock, and live sand is a great bio-chemical filter.

SUMMARY: Purchase a medium-sized shallow tank. Buy fish that stay small to reduce waste in the water. Get cheap fish, invertebrates, corals, and macroalgae. Use corals that do not require a lot of light. Purchase just a few animals that move freely.

INPUT ARTICLE: Article: It is a ready-to-use alkaline solution of tough silicate material which combines with softer lime-free particles in conventional concrete mixes to form a harder surface which resists wear and dusting. It can be used on old concrete in basically good condition or on new concrete laid at least 14 days before. Provided the concrete is clean and free from surface water, the dust-proofer is simply poured onto the floor and spread out with a soft broom, then left to dry for 40 minutes. The floor is then washed with clean water. On very porous floors a second or third coat should be applied with 40-60 minutes between coats. Ponding should be removed after 10 minutes. 40-60 minutes after the final coat the floor should be washed with clean water. When coloured pigments have been used on concrete or granolithic flooring, it is advisable to test treat a small area first to check that Dustproofer has no adverse effects on the colour.

SUMMARY: Add a concrete dustproofer and surface hardener. Pour the dust-proofer in the concrete. Add more if needed.

INPUT ARTICLE: Article: You'll need to be on an administrator account in order to open the Disk Partition tool, which is what you'll use to remove the write protection from your SD card. If your computer has an SD card reader, the card should slide label-up and gold connectors-first into the reader. If your PC doesn't have a card reader, you'll need a USB SD card adapter to do this. Click the Windows logo in the bottom-left corner of the screen. Type in command prompt, then click {"smallUrl":"https:\/\/www.wikihow.com\/images\/6\/66\/Windowscmd1.png","bigUrl":"\/images\/thumb\/6\/66\/Windowscmd1.png\/36px-Windowscmd1.png","smallWidth":460,"smallHeight":383,"bigWidth":"36","bigHeight":"30","licensing":"<div class="mw-parser-output"><p>I edited this screenshot of a Windows icon.
<\/p><p>License: <a rel="nofollow" class="external text" href="http:\/\/en.wikipedia.org\/wiki\/Fair_use">Fair Use<\/a><br>
<\/p><\/div>"} Command Prompt at the top of the Start menu when it appears. Type diskpart into Command Prompt, then press Enter. Doing so will confirm your decision and open the Disk Partition window, which resembles another Command Prompt window. Type in list disk and press Enter. You can find your SD card by looking for a number of megabytes or gigabytes that correlates with your SD card's storage in the "Size" column; the number to the right of "Disk" on the far-left side of this value is your SD card's number. For example, if you see that the storage size for Disk 3 mirrors your SD card's remaining space, your SD card's number is "3". The top disk (Disk 0) will always be your computer's built-in hard drive. Type in select disk number where "number" is replaced by the SD card's number, then press Enter. This will tell the Disk Partition tool to apply the next command to your SD card. For example, if your SD card is labeled as "Disk 3" in the list of computer disks, you'd type select disk 3 here. Type in attributes disk clear readonly and press Enter. You should see a line of text that reads "Disk attributes cleared successfully" appear in the window below your cursor, signifying that your SD card is no longer write-protected.

SUMMARY:
Make sure that you're using an administrator account. Plug the SD card into your computer. Open Start . Open Command Prompt. Enter the Disk Partition command. Click Yes when prompted. Bring up a list of your computer's disks. Determine your SD card's number. Select your SD card. Clear the "read only" attribute.