| | Re: DIY Trickle filter questions
Hello there I have made trickle filters before.
Nowadays, I just use a canister filter that has an inline co2 diffuser and an inline heater attached to the hoses so nothing in the tank except for the filter intake and exhaust.
Now for trickle filters, All I did was use an aquarium for the sump. Just use one much smaller than the Aquarium. So for a 40 gallon tank one could use a 10 gallon tank. You need to figure out how much media you need for the size of the media container. There are different ways of making the container for the trickle media. One easy and I think good looking way is to buy one of those plastic terrariums. A 5 gallon terrarium works well with the 10 gallon sump.You drill holes through the bottom and one hole in the top of the cover to attach your hose. You can make a drip plate with aquarium divider material siliconed to eggcrate then that sits on the balls. Just drill bigger holes into the divider material.
A more professional and even better looking way to make the media container, (but much more difficult) is to buy a 5 gallon aquarium and then you knock the bottom piece of glass out. (Difficult glass to break and clean all the pieces out safely, you need experience with this kind of thing). Then you buy a piece of egg crate they use for lights and silicone this in the bottom, the bioballs sit on the egg crate. With some filters the media container can sit on the top rim of the sump, with other set-ups you silicone in plastic posts,egg crate or whatever you have around and the media container sits on the posts. I liked the media above the level of water in the sump. I used a store bought pre filter and submersible pump. You can add the heater into the sump. I made one filter that also had chambers but that's more complicated. One of the problems with these filters is that it is easy to overflow your tank or your filter. Of course they sell gadgets for this but I never invested in one All the best