Help w\Flow in IM SR80

[scaramanga]

Hey all,


Current gear are 2 x Jebao MCP 120 Gyres. They are offset running at 30% on random mode. Left side Gyre Horizontally positioned near the front of the tank. Right Side horizontally positioned near rear. Flow meets in the middle on one side of each gyre so they are not full blasting each other.

There are 4 returns at the center of the tank. No nozzles, just free flowing in like a garden hose.

Problems I've seem to run into are. LPS and Zoa's all super pissed. Little to no extension. Zoa's are straight closed. I've moved them under the gyre which has the least amount of flow. Tissue has all recessed to near the head over the past 3 months. SPS looks like it might be getting blasted(I'm not quite sure)? If I turn up the gyres any more than 30% sand in the middle goes everywhere in less than a day.

Anybody have any idea if this is too much flow or flow not set correctly?

Are these the right powerheads for the tank? I am not opposed to replacing the gyres.

Should I use a spinstream or RFG nozzles on the return?

Am I using too much rock?

Do I remove just 1 gyre and rearrange rock and coral?

Maybe do 1 gyre vertical along back wall and one middle horizontal?

Any suggestions or thoughts are appreciate. I contemplated buying 2 of the Jebao DMP 40's and replacing the gyres out. I think Tunze Orca's maybe overkill, plus the cost is hard to justify on an 80g tank. Do I remove just 1 gyre and rearrange rock and coral?

With Return on and No Return
https://photos.app.goo.gl/cLZKzSkEh6JwcGXbA

 

[mescobar]

My initially thought is that your flow is super turbulent. I'd consider halving the power to 15% and see if things start opening up, and go lower if need be. If you are unable to turn down below 30% (sometimes Jebao sets this as the min power) then I'd consider turning one of the gyre's off and see it corals respond better.

 

[scaramanga]

My initially thought is that your flow is super turbulent. I'd consider halving the power to 15% and see if things start opening up, and go lower if need be. If you are unable to turn down below 30% (sometimes Jebao sets this as the min power) then I'd consider turning one of the gyre's off and see it corals respond better.

Yeah 30% is lowest

 

[REPOWER]

Raise them both up a little higher if you can, try an inch below the water line. Position both so they are facing each other. See how that goes.

Are you able to control your return pumps?

 

[scaramanga]

Raise them both up a little higher if you can, try an inch below the water line. Position both so they are facing each other. See how that goes.

Are you able to control your return pumps?

Tried a higher aimed at each other on lowest setting and it was a tornado in the middle. I moved it to offset and it was less turbulent in the middle since only 1 side of each gyre were hitting each other.

I am able to control the speed and I do have the flat head nozzles and some locline.

Everything I seen with others builds on the tank show 2 x MP's on opposite sides of the tank.

I asked someone who has the tank running 2 x gyres and he had his stuff turned down to 15% facing each other and I think he had a less powerful gyres.

I regret not going with the smaller gyres when I bought these 2 years ago. Did so much research saying to get the bigger gyre for the old tank I had. Man even in that tank, which was a bit longer and taller, it moved a ton of water.

 

[Tangerine Speedo]

Can you change the duration and ramp up speed? If the lowest you can go is 30% but it takes 10 secs to get there it might help. Also can you anti sync them so only one goes at a time...

 

[Jimbo327]

aim the gyre more to the water surface...maybe that will help.

 

[joeoliver]

I have the same type of set up with two jebao gyres. 30% still pushes a lot of water so I lowered the gyre a bit and pointed it towards the surface. there's still a lot of flow on top where my acros are and moderate flow on sandbed.

also, if you're able to change the flow settings using the app, you could try the classic setting with cross-flow turned on. this setting is not as strong.

 

[scaramanga]

You guys nailed it. Issue was with using random mode and not setting it up on the app.

Finally sat down today and setup my 2.4ghz network. Connected the gyres to that wifi. Once on I was able to add it to my app. I did have these connected master/slave via the controller prior to. They never ran antisync, but the app has WAY more features than the controller. Changed the flow over to classic with crossflow(only available on the app). Set the settings to 56% flow and 47 frequency. This mode setup turns one gyre on and the other off rotating about every 20 secs in wave mode. LPS on the bottom are starting to extend now. SPS is also loving the less direction and more sway from randomness. I'll post an update once the tank has gotten a couple weeks of the flow behind it