Acroporas and LED lights

[saltyfilmfolks]

I have one jebao set to propel periodically (on/off every 1 second) ... but I have no other pump with such programming ... is there a problem if I add one more 2000 liter/hour pump constantly working?

probably not. Worth a shot anyway.

When 2 streams meet it creates turbulence. As that turbulence is increased and decreased it creates an area of "travelling" turbulence. Thats a good thing. To visualise, push one hand against the other, and vary the amount of one hand. This accomplishes 2 things. Turbulence and Surge..

 

[saltyfilmfolks]

Should the 2nd pump be placed near the first or opposite ?

also depends on scape. Opposite generally, but I have a tank with PH's at 90 degrees from each other.

 

[Cenglezopoulos]

probably not. Worth a shot anyway.

When 2 streams meet it creates turbulence. As that turbulence is increased and decreased it creates an area of "travelling" turbulence. Thats a good thing. To visualise, push one hand against the other, and vary the amount of one hand. This accomplishes 2 things. Turbulence and Surge..

Ok I will add the other pump opposite of the first ... and we will see...

 

[saltyfilmfolks]

You can also increase mass water flow by pointing up and increasing surface agitation. Itll lessen the flow on the bottom and increase O2 in the tank and help PH btw.

Good luck...

 

[Cenglezopoulos]

You can also increase mass water flow by pointing up and increasing surface agitation. Itll lessen the flow on the bottom and increase O2 in the tank and help PH btw.

Good luck...

For know I just set my pump to a more intense program ... if I understood correctly, you suggest pointing the direction of the flow towards the surface? Its pointing towards the sps right now

 

[Roy 9121]

Well the think is there were 5 of them over 48x24 so it's hard to give direct comp.

But I ran them 80% uv, v, db, rb and 40% w,r,g. 1hr ramps and 12hr full power. Easy and simple. I want to say have them 30" from bottom of the tank.


The bigger thing is the flow in that tank. I had 2mp40s, 1 gyre 150 all running 90% (gyre at 100%) constant mode, not reefcrest, but constant high flow. Plus the return pump. That was over 13,000 gph constant, not cycle up and down.


EDIT: I see you asked if I still use them. No, but I would. I got sick and had to tear down the tank, I made it FW and automated waterchanges because I wasn't home very often and when I was I couldn't work on it.

Isn't 12 hours full power on the lights a little too long? I run mine about 10

 

[saltyfilmfolks]

Isn't 12 hours full power on the lights a little too long? I run mine about 10

Depends on intensity.

For know I just set my pump to a more intense program ... if I understood correctly, you suggest pointing the direction of the flow towards the surface? Its pointing towards the sps right now

Once you add the second head, play with it.

 

[hart24601]

Isn't 12 hours full power on the lights a little too long? I run mine about 10

Seemed to work well for that tank. Flow and intensity are linked, forums should talk about that more. Extra light energy is giving off as heat and high flow is needed with a lot of light or you bleach. Sps are harder to judge, but LPS and soft coral it's very easy to see if they are getting too much light as they contract. If they are open and great at noon and by 9pm are contracted then they are (generally) getting too much light or for too long and need to be moved or light modified. If I ran lower intensity I wouldn't have an issue running them for 16hr.

But really it's not all that important IMO. I think running 8 the tank would still be good or 14. People worry too much about lighting!

 

[svogun]

There is an article by Daniel Knop (German editor of Koralle) who talks about difficulty/slow growth of acropora in newer tanks. He is doing research that attributes this to the lack of cryptic sponges in newly established tanks. His hypothesis is the acroporas require these sponges as nutrients. A german aquaculturist Jurgen Wendel also believes that newly established reef tanks despite perfect parameters often have difficulty growing acropora because of this. The article by Knop indicates that year 2 of the life of the tank is the time to begin adding acros. He recommends starting with montiopra, birdnest, and stylophora in newly established tanks. I'm sure a number of our members will show examples of acros growing in newly established reefs, but the article is worth a look. The title of it is Starter Scleractinians.

 

[saltyfilmfolks]

There is an article by Daniel Knop (German editor of Koralle) who talks about difficulty/slow growth of acropora in newer tanks. He is doing research that attributes this to the lack of cryptic sponges in newly established tanks. His hypothesis is the acroporas require these sponges as nutrients. A german aquaculturist Jurgen Wendel also believes that newly established reef tanks despite perfect parameters often have difficulty growing acropora because of this. The article by Knop indicates that year 2 of the life of the tank is the time to begin adding acros. He recommends starting with montiopra, birdnest, and stylophora in newly established tanks. I'm sure a number of our members will show examples of acros growing in newly established reefs, but the article is worth a look. The title of it is Starter Scleractinians.

I'd love to read it. Thank you. For many years Julian sprung has theorized similar things. There's also a lot of current research being done on what corals actually eat.
Thank you. I'll look for the article.

 

[FranklinDattein]

Keeping acros in a 60L tank will be extremely challenging. They require a level of stability that is difficult to achieve with such small volume.
I wouldn't bother trying acros in less than 200L, it is not gratifying in my opinion. Even at 200l will require dedication.

Stable parameters is a good start, but they won't take into account polutants from your hands and the environment, for example. Simply putting your hands in 60L, could add contaminants enough to bother SPS.

Also, bear in mind fluctuations happen more drastically and fast in small volumes. For example, pH drops at night and kH fluctuation across the day.