Recently upgraded my air pump to the Eheim Air Pump 200, with dual output. My previous air pump was not strong enough to power 2 sponge filters simultaneously.
This Eheim Air Pump is very strong. In fact, it is almost too strong, I had to lower to the lowest setting for my 2 gallon nano tank. For the 5 gallon tank, I select the medium setting, and angle the output towards the wall. The sponge filter output was made to be above the water level (there is less turbulence this way).
Overall, this air pump is very good and quiet. Do expect some noise though, it is not totally silent. I would say it has the same noise level as a fan, which is totally acceptable. Also, I find that the 2 adjustable valves are not totally independent, when I adjust one valve it will affect the other output as well.
Review: The Eheim Air Pump is a highly recommended air pump for fish keepers with 2 aquariums.
The Eheim 200 Air Pump is also labelled as Eheim PHL207184. There is a more powerful Eheim 400 (twice the output), but based on my review most aquariums under 50 gallons should not require such a powerful pump (maybe 50 gallons and above may need it).
Eheim PHL207184, 4.00 x 6.00 x 4.00 inches, Black
I find this Hikari Shrimp Cuisine quite good. The pellets are quite small sized so you can control exactly how much you want to feed (down to each individual pellet).
Hikari Inc AHK19404 Shrimp Cuisine 0.35 -Ounce
How to feed Hikari Shrimp Cuisine Pellet (without fish snatching it away)
This was something that perplexed me for a long time. My fish would grab any food meant for the shrimp, leaving close to nothing left for the slower moving shrimp.
The solution I found was to:
- Put the Hikari Shrimp Cuisine pellets in a small container with tank water.
- Crush the pellets (I just use my finger).
- Stir to “dissolve” the pellets a little. Stirring also helps the pellets to sink.
- Pour the water with “dissolved” pellets back into the tank.
You may switch the order of steps 1 & 2 if you like (I find it easier to crush the pellets when wet).
The main reason why this works is because:
- Hikari Shrimp pellets are sinking (this is very important since shrimp can only eat sinking pellets that reach the floor).
- By crushing the pellets into powder, it is virtually impossible for the fish to snatch all the shrimp’s food.
- Some, if not most, of the powder will reach the tank floor, where the shrimp can find and eat it.
Another way to feed shrimp exclusively is the usage of a shrimp feeding tube and feeding dish.
JZMYXA Shrimp Feeding Tube and Feeding Dish, Fit for Shrimp Fish, Mini Size, High Transparent Acrylic Material
How much Hikari Shrimp Cuisine Pellets to feed
This depends on how many shrimp you have, and also your tank setup. Ideally, shrimp such as cherry shrimp or Amano shrimp can survive on algae and biofilm. Hence, if your tank is well planted, you only need to feed lightly. Personally, I only feed the shrimps once a week, at around 2 Hikari Shrimp pellets per shrimp.
If your tank is bare (no plants), you need to feed more, maybe once every day or once every two days.
Supplementing with Hikari Shrimp food is good because it contains essential minerals like copper (shrimp need small amounts of copper) and other minerals that can help shrimp molt.