Power head/ wave maker anemone safe

I think any powerhead type pump is a potential risk to a wandering anemone. Even ones that have guards. The risk is less but not totally safe. It's just a chance many of us take.
 
I think any powerhead type pump is a potential risk to a wandering anemone. Even ones that have guards. The risk is less but not totally safe. It's just a chance many of us take.
We can have a tank without a power head?
 
There is not a wave maker that is anemone safe. The thing is we should keep anemone in great situation so it does not move. When it move, nothing that push water will be safe for it.
If you are not confident in knowing your anemone species and the condition it need, then reconsider keeping the anemone.
I use MP-60 in large tank and MP-10 on smaller tank. I don’t have “anemone guard” on these PH at all
 
Could I use a sock?
Whatever you can do to decrease the velocity of the water of the intake side of the power head to decrease the force tearing the anemone apart if it wander into it. Or anything to prevent the anemone to get to the PH on the first place will make it safer. There are quite a few things you can do but all cause cumbersome large contraption or decrease the function of the PH or both.
It is best not to keep the anemone altogether if you cannot keep it happy.

There are so many threads similar to this. Best to avoid it.
Anemone got chew up by PH
Actually it is your thread (the OP) sorry about your anemone
 
Whatever you can do to decrease the velocity of the water of the intake side of the power head to decrease the force tearing the anemone apart if it wander into it. Or anything to prevent the anemone to get to the PH on the first place will make it safer. There are quite a few things you can do but all cause cumbersome large contraption or decrease the function of the PH or both.
It is best not to keep the anemone altogether if you cannot keep it happy.
Pardon my ignorance here, but - out if genuine curiosity - is it just the intake side (the back/where the water comes in/etc.) that’s dangerous to nems and such, or is the output side (the front/where the water goes out/etc.) dangerous for them as well?
 
Intake. They get too close and get sucked in.

Nem guards are really a pain and as Orion noted, the ideal situation is giving them an optimal environment such that they have no reason to move.
 
We can have a tank without a power head?
It's tough to do it without them, but it is possible.
I've used a closed loop system for decades on multiple tanks.
They can be stand alone pumps, plumbed over the top with multiple outlets and can be plumbed with bulkheads in the tank.
My current 240 has a closed loop pump with 4 inlets with loc-line Y's that sends water in 8 different directions in the tank.
On smaller tanks it's probably not real practical.
The smallest tank I've used one on was a 30" x 20" x 18" and it was a mag 12 that sat on the back of the stand that had plumbing running over the top of the back wall.
 
The intake of the close loop is dangerous. However the principle is the same. Decrease verlocity of the intake.
Back in the 1999, before the availability of the propeller type PH, I used large close loops in my 420 tank for circulation. I used 2X1.5 inch intake adapted with a mesh extension similar to perforated 1.5 inch pVC that is 2 feet long to defuse the intake. It was fine but as you can see fairly cumbersome. To total volume of water was around 6000 gal per hour.
 
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The intake of the close loop is dangerous. However the principle is the same. Decrease verlocity of the intake.
Back in the 1999, before the availability of the propeller type PH, I used large close loops in my 420 tank for circulation. I used 2X1.5 inch intake adapted with a mesh extension similar to perforated 1.5 inch pVC that is 2 feet long to defuse the intake. It was fine but as you can see fairly cumbersome. To total volume of water was around 6000 gal per hour.
I found that using a closed loop can be a issue with the intake. So on my current 240, I made my intake out of a 2" pipe on the inside that had about 16" of total run. Then over that I made a diffuser box that is 12" x 24". After it ran for about 2 years I had to do some major re-arranging and was able to look at the diffusers. I found little to no debris against it. I clean out the pump 2x per year and don't see much inside it except a little slime.. It's RD3 150 watt.
 
I used to use two 1 amp dolphin pumps for the close loops. It was a huge Jacuzzi type pump. 5400 dolphin direct drive pumps. Lots of heat and lots of electricity.
 
My tank always has high flow. I posted multiple videos of my anemones online and the flow they required to be healthy.
Here is one

 
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There are anemone guards on Etsy for pick style wavemakers that could work. The power head marine land ones should work as the propeller is very recessed. Anything where thats recessed with a not so wide open guard around it should be safe
 

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