Search Amazon for "Supreme Hydro -Mag, Recirculating Water Pump, 190GPH - Danner Manufacturing, Inc. - #40120"

These pumps have been around for MANY decades and work very well.

 

Current USA eFlux 6008?


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Thanks. Have you used their model 1.9 before? Model 2 is too big for my application and I can't seem to find dimensional specs anywhere for the 1.9. They also state that it cuts down to 160 with 1/2' tube @ zero head. This might just fit power-wise if it is small enough.

I have not used that particular size before, but have used many of the larger ones in the past. According to Amazon the dimensions are 6.5"L x 4.25"W x 4"H.

 

Could you try altering your flow direction? i.e. have the inflow from the top with gravity assisting down through the media, and the pump from the base flowing back in to the tank (I assume the pump is on the outlet attachment for post filtration)
I'm just suggesting this as I have a small canister with an external pump like this that I had a similar issue with, but output volume increased substantially after altering the flow direction. I know it might sound a bit odd, but it worked for me.

 

Interesting. My canister is on the same level as my tank so I didn't think it would make much difference. The only reason I placed it going in this direction is for ease of cleaning. I have my filterfloss layer on the top so that I can just swap it out easily. How do you have your media arranged? I have no real basis for this, but I figured having the finest filter at the beginning of the flow would decrease biological colonization. I will give it a shot though and see if there is a significant increase.

What pump are you using on your small canister?

 

Possibly won't make a difference, it did for me though I had it beneath the tank. My pump is some unbranded generic 400lph that came with another similar type of canister, never measured the flow, but the difference was visibly noticeable. I've since stopped using that as I packed down the tank after a prolonged power outage, but will re-use in the same configuration on a new shallow when it comes back in stock.
My media for that set up was coarse foam at the top (first), medium foam, fine foam - this is the media that came with it - and finally crushed coral at the bottom. I removed filter floss (final stage) after first clean and replaced it with the crushed coral at the bottom after reversing the order of the media inside. Bio load was only a single betta and some snails in heavily planted 2x1x1 foot tank so I wasn't concerned about filter floss. It was CO2 injected hence the crushed coral and water is very soft here.
You would definitely need to reverse the order of the filter media for the exact reason you've pointed out. Who doesn't love spilling filter water everywhere...! And given that this hobby makes lots of money for everyone except us hobbyists, why not try to save on a pump now so you can get 3 more tanks later... 😁

p.s. my new filtration purchases since restarting this year (after losing all my tanks in the outage) have been sicce - 2 x since whale 200's to replace my 2 overworked but brilliant Eden canisters (which are now revamped as Oase after an ownership change). Too much time in storage and in sunlight damaged the connectors unfortunately. But very happy with the Sicce's.

 

Possibly won't make a difference, it did for me though I had it beneath the tank. My pump is some unbranded generic 400lph that came with another similar type of canister, never measured the flow, but the difference was visibly noticeable. I've since stopped using that as I packed down the tank after a prolonged power outage, but will re-use in the same configuration on a new shallow when it comes back in stock.
My media for that set up was coarse foam at the top (first), medium foam, fine foam - this is the media that came with it - and finally crushed coral at the bottom. I removed filter floss (final stage) after first clean and replaced it with the crushed coral at the bottom after reversing the order of the media inside. Bio load was only a single betta and some snails in heavily planted 2x1x1 foot tank so I wasn't concerned about filter floss. It was CO2 injected hence the crushed coral and water is very soft here.
You would definitely need to reverse the order of the filter media for the exact reason you've pointed out. Who doesn't love spilling filter water everywhere...! And given that this hobby makes lots of money for everyone except us hobbyists, why not try to save on a pump now so you can get 3 more tanks later... 😁

lol Prolonged power outage. Sounds like here in New Orleans. I actually have never bothered with filter floss either, but after hooking up this canister to my little overplanted pico tank I didn't realize how much clearer my water could get. I am pretty happy with this little sicce, but they don't make a more powerful nano pump that will work inline as far as I can tell.

 

We're up in the mountains in Victoria. First recorded tornado went through about 50 metres from our house. Things look different now that's for sure, but despite the natural, buildings and infrastructure damage across the region, no major injuries! Not something we were used to like you would be over there, just a freak storm coming from the wrong direction.

I'm looking at my tanks now and thinking I need to add some filter floss to all my filters permanently!

If it's easy for you, you may as well upgrade the pump. Spare pumps are always handy.

 

Oh wow that is surprising. I thought you lot on the southern side were protected from cyclones. There goes my retirement plans!

 

Looking at your set up, could you put a straight connector in place of the 90 degree elbow, that too reduces your flow a bit, and would allow the said pump to fit.

 

I thought about that when I was first building it, but couldn't figure out a way where it didn't look silly. The elbow is just screwed into a bulkhead so I could swap it. In that position, the pump sticks out of the top almost as tall as the canister, and the power cord then sticks straight up. There are some pumps that arrangement could work for but most of the ones that I found are for specific applications with low GHP and high head.

I was also thinking that something like this, screwed directly into the bulkhead might work. I cant seem to find one with the right specs though.