Measure twice and cut once …..

Discussion in 'Beginner Discussions' started by Neil H, 13 Jun 2008.

  1. Neil H

    Neil H Moderator

    Joined:
    11 May 2008
    Posts:
    2,794
    Likes Received:
    56
    Location:
    JHB
    Hi Guys, I have been on the site for about a month, learning learning learning ….. as with many of you I started out with fresh water fish and am now moving on to Marines…. What a fantastic resource this site has proved to be !!! :thumbup:

    Measure twice and cut once ….. something my Dad taught me many years ago… and something that is very applicable to this hobby….. with that in mind, I thought I would create this post in order for the more experienced people out there to point out any glaring weaknesses in my design.:nono:

    My aim at this stage is to ultimately have a full reef tank, but to start modestly with more softies than sps

    Firstly the tank specs …. The tank is 1.2m x 60cn x 75cm. (LWH) made of 10mm glass (base is 20mm)

    The tank has been drilled at the back left, the overflow box still needs construction... what is the black stuff guys put onto the glass of the overflow to hide the piping??.

    The Stand was custom built out of 50mm square tubing and is 75cm high.

    So lets start with the tank aspects ….

    I plan on putting in a durnso (sp) pipe into the overflow to reduce noise, this will be made from 1.5 inch pvc piping, I will have an egg crate grid to prevent livestock going into the sump.

    The lighting … INITIALLY I have planned on 4 to 6 T5’s with reflectors …. 1/2 white and 1/2 blue (10 000K) and possibly a moon light as well. I may upgrade when I have enough sps to warrant it ….. I am trying to avoid the cost of the chiller at the moment, thus avoiding the MH’s at this point. My T5’s will sit about 14cm from the water surface. The T5’s will be on a timer in opposite sequence to the sump light. I intend having 2pc fans in the lid for heat reduction.

    The water will be returned to the tank via a 20mm pvc pipe entering the top back of the tank lid. At this stage I am not sure how to distribute this water, my current plan is to route the return water from the back right of the tank via pvc piping to two distribution points in the front of the tank (with holes drilled to avoid back siphoning) … is this advisable??.. my logic here is that I want the return water to enter the tank as far away from the overflow as possible, thus cycling more of the tank volume in a given period?

    In terms of the tank itself, I plan on 2 or 3 powerheads for water circulation…. Given the 550L est water volume, what sort of pump output should I aim for here?

    I will be using pvc piping to aid in the stability of the LR in the display tank and plan on having a thin layer of sand on the bottom … not crushed choral


    Ok then the SUMP….

    I have already posted my design of the sump, but briefly the tank water will enter compartment #1 where the skimmer (Reektec TS2) and heater (1x300watt) are located, there is then an underflow and overflow into compartment #2 the DSB (with a energy saving light on a timer), from there, there is an overflow into compartment #3 which houses the return water pump. The pump I have should cycle the water through the sump at about 700L an hour … is this sufficient?. I have made provisions for power failures etc in the sump capacity.

    Once the tank is up and running I will fit an extra pump into chamber #3 and run a DIY carbon and phos reactor, and eventually possible a calcium reactor …..

    So there it is ….. I know it is a long post with many questions, but are there any glaring mistakes in the overall design????

    Thanks in advance :peroni:
     
  2. Guest




  3. jacquesb

    jacquesb Retired Moderator

    Joined:
    29 May 2007
    Posts:
    17,868
    Likes Received:
    70
    Location:
    Cape Town
    Hi Neil - this sounds awesome. BUT, I would go for the 6 T5's at least (8 would be even better if you could fit them on). Of which (if 6 only) I would only put on 2 blue/actinics and 4 white.
    The corals need the white to grow... Blue is only for color..
     
  4. Franske

    Franske

    Joined:
    3 May 2008
    Posts:
    647
    Likes Received:
    39
    Location:
    Pretoria
    Sounds very good,I think 4 t5s will be fine for the begining because fish and some soft corals dont need that intense light,I agree with jacques go for a third blue and the rest white lights,id go for seios as in tank pumps they are very good value for money,three seio 1100 should be enough
     
  5. Warr7207

    Warr7207

    Joined:
    28 Dec 2007
    Posts:
    12,781
    Likes Received:
    31
    Location:
    JHB
    That might not be totally true, corals will even grow under 6400K light, it really depends on intensity.

    Check it out - Interesting lighting Info - Lighting
    ;)
     
  6. jacquesb

    jacquesb Retired Moderator

    Joined:
    29 May 2007
    Posts:
    17,868
    Likes Received:
    70
    Location:
    Cape Town
    Warr - yes - BUT when compared to the BLUE / ACTINICS, they need the white T5's to grow.... (white color - being anything from 4700K to 10000K or perhaps even 14000K) :)
     
  7. gaboon

    gaboon

    Joined:
    14 Nov 2007
    Posts:
    2,241
    Likes Received:
    5
    Location:
    Northriding
    Choose your globes carefully. They cost a bit extra but go for Giessmann or ATI. I compared 1 giessman to a daz globe and it was blindingly better.
     
  8. gaboon

    gaboon

    Joined:
    14 Nov 2007
    Posts:
    2,241
    Likes Received:
    5
    Location:
    Northriding
    Also, underflow into the dsb chamber defeats the purpose of a dsb.
     
  9. seank

    seank

    Joined:
    24 May 2007
    Posts:
    11,986
    Likes Received:
    123
    Location:
    North of Durban and South of Mozambique
    And make sure the light penetrates deep enough into your tank
     
  10. Shaun

    Shaun Retired Moderator

    Joined:
    29 Aug 2007
    Posts:
    5,274
    Likes Received:
    15
    Location:
    KZN
    M2c.
    Y are you using 20mm base no need too.
    If you are later going to get SPS go for MH. Tank will be to deep for T5's alone. The max I would go for depth is 400 - 500mm. I have SPS with only T5's but my tank is not deep. just remember the deeper the tank the harder it is to work on. I would rather have a wider tank than a deeper one.

    Good luck. sound Gr8.
     
  11. OP
    Neil H

    Neil H Moderator

    Joined:
    11 May 2008
    Posts:
    2,794
    Likes Received:
    56
    Location:
    JHB
    Hi All,

    thanks for the feedback so far, some clarity on some of the comments...

    in terms of lighting, thanks for the feedback.... would it be realistic to have the T5 combination (where two thirds are white and one third of the globes blue) and have the sps in the upper reaches of the tank, with the softies in the deeper parts of the tank ...? Are there specific lighting requirements for softies?

    Gaboon point taken on the globe choice.... in the sump, the water flows into the first chamber then in an underflow, followed by an overflow into the DSB chamber.... I guess my post was not too clear on that point!

    Thalion, I bought the tank 2nd hand at a good price.... so working with what i have !

    Guys once again, thanks for the feedback, keep it coming
     
  12. Shaun

    Shaun Retired Moderator

    Joined:
    29 Aug 2007
    Posts:
    5,274
    Likes Received:
    15
    Location:
    KZN
    Must have missed that bit, speed reading.:)

    I am currently using 6 T5's 4 White 2 Blue,but I have only 450mm to use, but you should have space for 8 T5's. Try go for different makes of t5's. (good makes).

    Coral's have different lighting needs, some don't like, or need direct light. You will just have to do your homework first. I have a monti that is on the bottom of the tank (400mm deep) and is doing very well. So anything is possible.
     

Recent Posts

Loading...
Similar Threads - Measure twice once Forum Date
Measure twice - add water once... General Discussions and Advice 11 Dec 2008
Measurements of plumping Anything DIY Related 15 May 2017
What parameter do you measure most often Water Parameters and Additives 27 Jan 2015
How do you measure your pH Water Parameters and Additives 6 Oct 2014
led lights and measurement controller needed ► Sponsor Request Forum 10 Mar 2014
How to measure light output with a Samsung Galaxy Android phone. Yes, really! Lighting 24 Jan 2014
Accurate salinity measurement General Discussions and Advice 20 Sep 2013