Cichlidude
- #1
I have switched up my media in my Seachem Tidal 75 after finding out that Matrix was a poor choice over the last year. Sorry.
Some instant noticeable differences occurred also that I will mention below.
First, here is the old media removed.

At the bottom of the basket I had the standard foam insert, then 2 Pinky Flosses. Next was some fine filter Polyfill (at top) followed by 4 bags of Matrix. The Tidal was turned all the way down to minimum about 20% of the flow rate. Mainly because I thought slow flow through the filter was better. If I turned up the flow, it would overflow completely even with the ¼” holes drilled in the basket, so the flow was reduced to about 20-30%.
Here is the new set up. First was to increase the size of the holes in the basket to 5/16 inch from ¼ inch for more flow through the new media.

After that was to cut out the new Poret foam I am switching too.

I am using 3 layers of 1inch blue 10 ppI foam on the bottom and 3 layers of 1inch black 20 ppI foam for the top 3 layers. 10 ppI is the mechanical and the 20 ppI (or above) is the biological.
After a quick rise, just stuff it in the basket.

Six 1 inch pieces fill the basket perfect to the top of the outflow.
Here is some information for Tidal filters that you should know. The inside basket is NOT a perfect square. The difference from the bottom width to the top is a good ½ inch. So you need to make sure that you really don’t cut the foam the same width. You can add ¼” to the width with no issues. Measure twice, cut once.
Once installed on the tank I noticed an immediate difference. Not touching the flow the water came out just fine. Now I turned up the flow and it came out even better! It started to overflow around the 90% flow rate (each notch on the knob is about a 10% change).
I now turned the knob 2 notches down from max and it is perfect for me now. Much smoother outflow because the old media was being clogged up and restricting the flow. So now I have about a 300 gph flow rate.
After 14 hours overnight, the water is perfect with no issues, as expected with new data received.
I made this change after learning that you don’t want to clean your filters regularly or too often. The longer your filter ‘gunks’ up the better water you will have. I expect to only clean this foam every 6 to 12 months after the filter slows down, realistically 4 months though. Even then only a quick rinse under water and they are ready to go.
Next is my Sunsun canister filter media change out.
Done! How I fill my Sunsun 303B Canister with media now
Some instant noticeable differences occurred also that I will mention below.
First, here is the old media removed.

At the bottom of the basket I had the standard foam insert, then 2 Pinky Flosses. Next was some fine filter Polyfill (at top) followed by 4 bags of Matrix. The Tidal was turned all the way down to minimum about 20% of the flow rate. Mainly because I thought slow flow through the filter was better. If I turned up the flow, it would overflow completely even with the ¼” holes drilled in the basket, so the flow was reduced to about 20-30%.
Here is the new set up. First was to increase the size of the holes in the basket to 5/16 inch from ¼ inch for more flow through the new media.

After that was to cut out the new Poret foam I am switching too.

I am using 3 layers of 1inch blue 10 ppI foam on the bottom and 3 layers of 1inch black 20 ppI foam for the top 3 layers. 10 ppI is the mechanical and the 20 ppI (or above) is the biological.
After a quick rise, just stuff it in the basket.

Six 1 inch pieces fill the basket perfect to the top of the outflow.
Here is some information for Tidal filters that you should know. The inside basket is NOT a perfect square. The difference from the bottom width to the top is a good ½ inch. So you need to make sure that you really don’t cut the foam the same width. You can add ¼” to the width with no issues. Measure twice, cut once.
Once installed on the tank I noticed an immediate difference. Not touching the flow the water came out just fine. Now I turned up the flow and it came out even better! It started to overflow around the 90% flow rate (each notch on the knob is about a 10% change).
I now turned the knob 2 notches down from max and it is perfect for me now. Much smoother outflow because the old media was being clogged up and restricting the flow. So now I have about a 300 gph flow rate.
After 14 hours overnight, the water is perfect with no issues, as expected with new data received.
I made this change after learning that you don’t want to clean your filters regularly or too often. The longer your filter ‘gunks’ up the better water you will have. I expect to only clean this foam every 6 to 12 months after the filter slows down, realistically 4 months though. Even then only a quick rinse under water and they are ready to go.
Next is my Sunsun canister filter media change out.
Done! How I fill my Sunsun 303B Canister with media now