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rvu1710

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    Ruhm 120gallon Living Room Peninsular Mixed Reef

    in Dedicated Tank (Build) Forum

    · Edited by rvu1710

    3d65948e32a532d66cc97af9fba5f208.jpg

    Have it done for over a months, so busy to keep update.. broke my tank down, drill it and lifted everything down to basement by myself:(. Tank has been good now.. sps encrusted and start to grow fast. The only problem is ph drop to 7.8 and i still think how to solve it.

     

     

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    Ruhm 120gallon Living Room Peninsular Mixed Reef

    in Dedicated Tank (Build) Forum

    I see your concern now.

     

    If you're serious about drilling it, here's what I would do.

     

    1.) Find a rubbermaid container stock, 100-150 gallon. you could probably borrow one from somebody.

     

    2.) Drain as much of water out, and remove as much of the rock (the heavy stuff) you can, and slide the tank out far enough that you can reach behind/get behind, or pivot the tank on an angle/diagnol.

     

    3.) Drill it, shouldn't take more than 20 minutes

     

    4.) Make sure you have all the plumbing, bulkheads, proper overflow, etc. in order to have it reach your sump.Make sure you do it right, because once you pump all the water and rocks back in, you don't want to find out it's leaking, and have to move it all back to trouble shoot.

    c8302028035c878e77cd5c10f8fc0f14.jpg

    I think this would be better for later....messing my own space:3

     

     

     

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    Ruhm 120gallon Living Room Peninsular Mixed Reef

    in Dedicated Tank (Build) Forum

    You don't need to get everything out to drill your tank. Just drain the water level down low enough and drill. It's less work than breaking down the whole tank, and it would be the exact same thing. Make sure you have all your plumbing and bulkheads on hand, as you'll not have a lot of margin for error. Also, I would suggest using brand new drill bits. Get a spray bottle with water, and have a buddy keep the glass wet, let the drill do the work, and go slow.

    e6cd4280480160b531c6764dc2894a07.jpg

    Thank you for your reply...the pic just show why i so sad when i placed this tank. So now i just dont know what to do...i have the other 75 gallon setup ready for water down in basement...still thinking to move everything down there and make a whole new system.

     

     

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    Ruhm 120gallon Living Room Peninsular Mixed Reef

    in Dedicated Tank (Build) Forum

    52a13be8aac89d6771a73cce0f3ecbae.jpg852e1d5a66d5e225a1b3f27b36ae76ad.jpg

    I still not happy with my light setup until i turn on my diy t5 and WOW...it almost make me cry...the light easy cover every area i never feel before..the color and the shade.

    I have seen a lot of tank with t5 led combo but the feeling we see our come to new lighting.

    And thank you Alan for the Par meter. I help me out a lot.

     

     

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    Calcium reactor flow rate not steadily.

    in General Discussion

    According to the DOS specs on the Neptune website, the DOS has variable, controllable dose rates from 0.1 to 250 ml/minute. It will work.

    They said it can not use continuous but some neptune guys use it with rate 3:1 (mins) have result really good. Then change out new head pump 30$ every 6-12 months so i think that is a deal when i can get two pump and control, montitor everything from my phone

     

     

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    Calcium reactor flow rate not steadily.

    in General Discussion

    The media only dissolves to the point at which it saturates for a particular pH. That's what you're aiming for because it creates what I'll call "deterministic dosing." That is, a steady value of solutes (dissolved solids) in the effluent solution (the enriched calcium reactor output). So, in your way of saying it, it creates an exact amount and then stops. This way, it's like dosing anything else: Add x to get y. Add 2x to get 2y. In mathematical terms, it's a linear transfer function.

     

    The drip method is a pain in the butt because (and almost all of us have seen this happen to us that tried it), the end of the microvalve gets clogged and the dripping slows or stops. Then we don't discover it until our alkalinity crashes. Some people try to get by this by opening the microvalve up and running a steady stream of a less-concentrated effluent. While that can fix the clogging problem, it's subject to variation in pump pressure changes and can be harder to dial in if you have to make changes.

     

    For me, the peristaltic pump method uses more equipment, but is far easier to adjust and more reliable.

    I just think the new neptune dos can work well like your schedule..it rate 190ml/min but on/off setting like you said could be a nice schedule for it.

     

     

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    Calcium reactor flow rate not steadily.

    in General Discussion

    The media only dissolves to the point at which it saturates for a particular pH. That's what you're aiming for because it creates what I'll call "deterministic dosing." That is, a steady value of solutes (dissolved solids) in the effluent solution (the enriched calcium reactor output). So, in your way of saying it, it creates an exact amount and then stops. This way, it's like dosing anything else: Add x to get y. Add 2x to get 2y. In mathematical terms, it's a linear transfer function.

     

    The drip method is a pain in the butt because (and almost all of us have seen this happen to us that tried it), the end of the microvalve gets clogged and the dripping slows or stops. Then we don't discover it until our alkalinity crashes. Some people try to get by this by opening the microvalve up and running a steady stream of a less-concentrated effluent. While that can fix the clogging problem, it's subject to variation in pump pressure changes and can be harder to dial in if you have to make changes.

     

    For me, the peristaltic pump method uses more equipment, but is far easier to adjust and more reliable.

    Thank you.. i can understand now and feel like i know is how dastaco works.

     

     

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    Calcium reactor flow rate not steadily.

    in General Discussion

    Different media from different companies often dissolve a little differently, unfortunately. So it's almost always a little trial and error at the beginning. Typically, you'll keep your reactor anywhere from 6.3 to 6.6 plus or minus a little. For example, mine is set up to add CO2 when the pH hits 6.4 but to stop when it drops down to 6.33.

    Can i ask if ph maintain at the number you want then the media dissolved continuous or just create exact the amount of that rate then stop...i just feel like if i dose it too low it could be come mess if i dont dumb it in to tank:(...

    I use reborn with the vertex reactor.

    I have read some where the alternative method where i keep the output over drip then drop the ph down until i touch the tank demand...do you think i could be any problem with that or that could use up much more co2?

     

     

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    Calcium reactor flow rate not steadily.

    in General Discussion

    For over 10 years now, I've had mine set up much like Bruce shows in the top diagram except for the following:

     

    1. I take my source water off of a pressurized manifold rather than a separate pump in the sump.

     

    2. My peristaltic pump lies between my manifold and the reactor. That is, it "pushes" water into the reactor rather than pulling from it. This leaves the reactor in an essentially unpressurized state.

     

    The basic principle here is

     

    Dose = effluent_concentration * dosed_volume,

     

    which is the same as

     

    Dose = effluent_concentration * dose_rate * total_time_dosing

     

    Controls:

     

    a) Effluent concentration: pH in the reactor controls the concentration of the solution/effluent. Effluent pH is monitored by a probe mounted directly in the reactor. (If your reactor does not have a probe port, you can add one easily enough using a probe mounting gland, but it requires drilling and tapping.) Water circulates continuously in the reactor chamber and when the pH gets above your target level, CO2 is injected into the reactor to lower the pH (acidify the water). The pH in the reactor is inversely proportional to the concentration of dissolved coral skeleton media (that is, the calcium and alkalinity-enriched tank water in the reactor). The lower the target pH, the "richer" (more concentrated) the solution. (Too low, though, and your media turns to mush. Too high, and the effluent will be "thin" and you'll need to dose a high volume to meet demand. Clearly, you need a controller to keep the pH stable inside the reactor.

     

    b) Dose rate: Set by the peristaltic pump delivery rate. Some pumps are fixed, some are variable. Normally, I just set a rate and leave it. My pump is set up to deliver 30 ml/minute, for example.

     

    c) Dose time: An intermittent timer turns the peristaltic pump on and off. I use my Apex to perform this job. I dose intermittently throughout the day but you can set it up any way you want it. For example, I may have my pump on for 15 minutes every hour (25% duty cycle), 24/7/365. That's 24 smaller doses through the day. And, at 30 ml/minute - that means 450 ml of enriched effluent per dose 24x per day.

     

    The parameter that I use to assess dosing sufficiency is tank alkalinity. Since a calcium reactor doses alkalinity, calcium, magnesium and a few trace elements in proportion to their concentration in the coral-skeleton media, tracking alkalinity in your tank means that you're probably tracking the other parameters pretty reasonably. To tune the dosage, I'll monitor alkalinity over a period of time (24, 48 or 72 hours). If it's falling, I'll bump up the dose time - e.g. 16 minutes per hour to use the previous example.

     

    You can adjust any of the three parameters in the equation that I show above. Time is the easiest once things are dialed in somewhat. If I feel like the pump is working too hard (is on too much and not off enough), I may speed up the dose rate and lower the time it's on, keeping track of the math (which is pretty straightforward). And, if I want to boost the concentration of the enriched water, I lower the target pH setpoint in the reactor. These are less common adjustments. Once they're within a certain operating range, you'll normally not touch them unless you have a good reason.

     

    Once dialed in, a calcium reactor can maintain a mature tank's alkalinity, calcium and other levels sometimes for months on end with just occasional spot-testing.

    Thank you...i always think like calciumreactor need to circulation through the tank all time. Unless i do that, it will get mess in the calcium reactor. Like you said if the calcium reactor keep the same pH all the time, it create the same amount element right the number just like we mix the soda ash to bottle? I mean like my tank need 2dkh every hour. Then i can set the ph to 6.9 to create enough 2dkh every hour for 24 dose. Or i can set at 6.5 to create 24dkh to if i dose 2x aday?....i just confuse a little bit right there....

    Anyway, i think i can understand your method a little...

     

     

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    Calcium reactor flow rate not steadily.

    in General Discussion

    I have my reactor plumbed off a tee from the return pump. I use to control flow with a needle type valve, but it kept clogging. Now I control flow with an inline 1/4 inch ball valve (Mur-lok valve) and no longer have issues with blockage. Every 6 months when I pull my reactor out to re-fill or service, I take the time to clean all tubes and valves to mitigate clogs.

    I use the same murlok valve but 1/2” for input, then output with needle valve...by some how it stay just for few day:(

     

     

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    Calcium reactor flow rate not steadily.

    in General Discussion

    Hi! I just start up my calcium reactor for 3 week running water with co2.

    I use maxijet 1200 feed pump and use the input valve to slow down to the rate i need and not to get high presure in the reactor. Then use needle valve to turn the rate to exact rate i want.

    However, the flow rate just decrease after few days.

    So can any expert help me out for this...i read some where they said it cause by air get trap in the line. And i need to use mainpump to get water input.

     

     

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