Vertaal met Google


With the filter finished, it was time for the finishing touches: Filter Materials, Tubing and Testing.

Filter Materials:
As mentioned I want to use ceramic rings in the middle section of the filter. I do want to change/wash them every once in a while so easy removal is key. I used a new (mind the detergents in used ones) bag that we normally use to wash delicate laundry. I put in in the filter and slowly filled up the bag with rings. I cut off the remaining piece of the bag, as it was too large to fit in the filter completely. The result:

Intermediate step: 
I wanted to have a black backside in the aquarium. I purchased black foil and specialized glue at the pet store. See the result below, which I'm quite fond off.


With two 90 degree corner pieces and some standard tubing (that I knew would fit the pump!) I created the tubing upward out of the innermost filterchamber and via a 90 degree turn to a horizontal piece. The last 90 degree turn then guides the water to the outflow. I created the outflow from a piece of PVC that I had lying around. I shopped the internet beforehand, but only found expensive outflows for either original filters or lily pipes. The latter is nicer, but expensive. I simply cut the pipe, poured hot water over it, bend it in a 110 degree corner and flattened it. I then attached it to the tubing. The end result:

Note that I bent two small pieces of plastic to form attachment clips of the filter to the tank. Easy does it!

I then filled up the tank with soil in order for the filter to remain in place and water. I tested the filter and checked it regularly. As you become used to it not leaking or malfunctioning, you automatically check less frequently. I checked water quality using a 7-test strip and kept this running for about two weeks. 

Next up will be planting the tank.
All parts were in, ready for assembly. Take your time if you're planning for an activity like this; it's not over and done with in a rush. The end result is nicer if you plan carefully and take the time to work with the materials. 

First I drew out the acrylic parts on the acrylic. It has got protective foil attached. Leave it on there and you can use it to draw your lines with a normal pen. I then attached painting-tape to prevent the glass from breaking while cutting/sawing it in shape. I decided to go for the latter with an old, small-toothed saw. This is what it looks like:

The pictures above show the upstanding sides of the filter. I also created two squares to form the base. The two are to be glued on top of each other to form a solid base. The lower plate is slightly smaller, to allow for the silicone glue in the sides of the tank to stay intact.

I then used sanding paper to make the edges nice and even. I also created the overflows in the smallest of the upstanding parts. Note that you need to cut out the overflows quite deep, as otherwise the waterlevel will need to be fairly high for the filter to start working!!! (one of my pitfalls...)

I removed the protective foil and used a 'creme-brulee torch' we had lying around, the edge of an old table and a piece of spare wood to bend the sides in a 90 degree angle (along the table, flattened with the wood as the plastic becomes hot). The end result, already in combination with the base and the pump (for illustration purposes) is shown on the right:

As mentioned I used special purpose silicone kit to glue the sides and the bases together. This is a slow process and an ugly result - unless you're really good with this stuff. For future attempts I would prefer to spend a little more and buy 'welding-liquids'. These melt the plastic locally and 'weld' it together. The result is much cleaner and stronger.

I then cut the old cable guides to fit and glued them on the sides to hold the mat. I also used a spare piece of plastic to bend in form of the mat that is intended to keep the soil away from the filtermat for easier cleaning/removing. I then cut the mat in shape (calculations make this easy) and inserted it into the cable guides. A last photo before testing is shown in the pictures below:

The final test is to put the filter into the tank. Luckily I had done my calculations correctly and the filter exactly matches the tank. See the picture below. 

The next post will cover the tubing, installation and testing