Another too much flow question

[Avengerx77]

I am running a 60 gal display tank (30inch length) with a 10" glass thickness. I am currently using a Vectra S2 and one MP40, which is rated for 50gal - 500gal. When I introduced my pair of clownfish they seemed to be carried away by the MP40, which at that time I had the reef crest mode at 40% intensity. They are swimming only at the front of the glass, so it just might be the place where they like to swim at the moment, but I am also wondered if it could be too much flow for them from the MP40. I have dialed down the intensity to 20%, but wanted to see what you think the intensity should be from the MP40 for this tank?

 

[Mr. Mojo Rising]

you shouldn't adjust the flow for any fish, they will find their own spot thats comfortable for them. Especially clownfish, they will find their comfy spot and then rarely move.

 

[Avengerx77]

Ok, fair enough. I guess the question then would be what is a good intensity for the MP40 under those tank specs?

 

[Mr. Mojo Rising]

I'm sorry I don't have MP40's or that kind of tank (but this will bump the thread for you) Good Luck

 

[Avengerx77]

Bump

 

[Supa]

I’m new to reefing I have a 55 gallon display I bought 2 mp40s and I can only run one of them at 10-20percent or I get a sandstorm(my sand is NOT fine grade…. )Also with one mp40 on at 20 percent there is very little areas with low flow… I’m thinking I need 2 mp10s. As the mp40s are so powerful. My clowns did the same thing but they sleep near the MP now and they don’t get sucked in or anything.

 

[Avengerx77]

Thanks Supa, since my tank have a 10“ glass thickness I preferred to avoid the MP10, as their max thickness is to 9.5“ but did know I might have to dial down the intensity quite a bit as will overpower my tank. I dont mind running the MP40 at 10-20%, but I dont also want to have low flow in the tank, so thats why I wanted to ask around here if someone has some advise on that end.

 

[Supa]

Thanks Supa, since my tank have a 10“ glass thickness I preferred to avoid the MP10, as their max thickness is to 9.5“ but did know I might have to dial down the intensity quite a bit as will overpower my tank. I dont mind running the MP40 at 10-20%, but I dont also want to have low flow in the tank, so thats why I wanted to ask around here if someone has some advise on that end.

Thanks man, and yea my glass is the same way I doubt an mp10 would hold good on 10mm glass…. I would say that with the mp40 on 10% and 20% it limits my flow pattern(I can’t gyre or create a wave, I can’t even run a random reef mode as it only goes from 20-10% power randomly which doesn’t do much for the flow pattern. I don’t mind this much but have read many articles that said one flow pattern is not so healthy for coral and stuff. I try to use my return nozzle to Run the opposite direction of my MP to try to break the flow up and create random pattern…. The little bit of coral I do have is happy …. Minus my goni I can’t seem to find a spot that has low flow and decent light for it to thrive so it stays retracted about 90% of the day lol I may try to save my mp40s for my upgrade tank in the future and may just try to find another less powerful power head where I can have 2 and try to run at higher ranges without causing sand storms etc

 

[shadow_k]

you shouldn't adjust the flow for any fish, they will find their own spot thats comfortable for them. Especially clownfish, they will find their comfy spot and then rarely move.

I agree with this statement my clowns pick a spot and rarely move from it and I mean rarely.. only when it’s chow time you will see them swimming.

 

[Supa]

I had them on the back wall . Then tried the sides pointing at each other. You can see the right hand side one in the photo is the only one I turn on and like mentioned I can only run 10-20 percent max. Ideally I want to be able to use the different settings on MP like slave anti sync etc but they are just too strong for my 55 gallon

 

[Avengerx77]

I currently have my return nozzle running opposite direction from my MP40, that one is coming from a Vectra S2 at 70% intensity. I only have the pair of clownfish, so will have to keep monitoring when I start adding more fish and corals and adjust accordingly, if needed. I feel that 20% from the MP40 should be fine for now. I am planning to have a predominant Soft/LPS tank, so don't think will need to dial up much, maybe something around 30-35%.