Ideal flow rate for a 200 gallon N.v.v tank?

sharrakor

New member
Joined
Oct 16, 2011
Messages
21
Reaction score
0
Points
0
Country
United States
I'm in the process of designing a huge tank to house my growing newts, and am still heavily in the planning stage doing as much research as possible, but one thing I could not figure out was what the best turnover rate for the tank would be. I have extensively used the search function on the site (and google; a cool tip is if you type "site:caudata.org string" it will only return results from caudata.org) but wasn't able to find a good sort of rule of thumb to go by; all cases were specific limited examples, and in much smaller tanks.

I plan on making a big post with all the details before I actually buy anything, just to double check that everything is ok, but this is an essential part of the design that I need to work a lot of other things around.

The details (so far; subject to change if need be):

200 gallon tank with 50 gallon sump. Undecided on if this will be a wet/dry filter, but it likely will be.
Self designed "overflow" that pulls water from the middle of the tank into the sump, so as not to disturb the newts hanging out on the surface of the water or the bottom of the tank.
Will house around 40 Notophthalmus viridescens piaropicola. 3 bought from a pet store, 37 captive bred over 2 mating seasons. This species is only found in peninsular Florida, and is fully aquatic (though I always leave some land, just in case).
It will be a heavily planted tank with high light. I am currently testing to see exactly what kind of light the newts are comfortable with. So far it looks like they don't really care.
Will have some form of CO2 injection. I've searched around on the site and seen that many people do fine with CO2 injection. I will have a large number of safety measures in place to be sure the CO2 levels stay fairly low -- I was thinking 10-15 ppm max. I will also have a computer system hooked up to the tank to alert me if anything is out of order.

As I said, because my overflow is going to be a custom design unlike any I have been able to find so far, largely due to the fact that I want it to pull water from the middle of the tank rather than the top, I will need to thoroughly test it.

To make matters more complicated, it cannot be a standard style of overflow, because a standard overflow with air exposure will cause CO2 losses, which means more CO2 needs to be added, which increases volatility.

As such, I need some idea of what flow rate I should have in the tank. So far, I was thinking a 4-5x turnover rate might be good (I'm talking about just the main tank, so 200 gallons x 4 or 5 = 800-1000 gph). But I'd love to hear what you guys think! When it comes to plumping and drilling holes in the side of the tank... I really want to get it right the first time around :)
 

Adogowo

New member
Joined
Jan 26, 2013
Messages
35
Reaction score
1
Points
0
Location
Littleton, Colorado, USA
Country
United States
Sounds like you have a great idea and I applaud yor efforts at researching the information you need. It sounds to me like the flow rate is good so long as your not adding a lot of current. Do you have a diffuser planned for the inlet? If you do then I would say great. As far as drilling the tank I have never done it but it seems straight forward. I have noticed that reef ready aquariums often are equipped with a baffle around the drilled holes and wonder if this is a way to reinforce the hole in addition to keeping fish out of the intake. Hopefully you get some more feed back soon so your not going at it alone. Good luck.
 
General chit-chat
Help Users
  • No one is chatting at the moment.
  • AlexisJG:
    As long as they don’t seem stressed that’s good and I mean hey if their well fed maybe they’ll live long happy lives together.
    +2
    Unlike
  • HalfDrunkToast:
    oh ya they are happy xD every time i come in to my room my Koy betta is like HI HI HI and actively swimming around
    +1
    Unlike
  • Chat Bot:
    Calgarycoppers has left the room.
    +1
    Unlike
  • Nerodia1:
    Děkuji za přijetí. Hledám tohoto obojživelníka, Typhlonectes compressicauda, nevíte, kde ho získat, nejlépe někde v Evropě.
    +1
    Unlike
  • Chat Bot:
    Caudex has left the room.
    +1
    Unlike
  • Chat Bot:
    VEEK has left the room.
    +1
    Unlike
  • Lanalotl:
    My axie is acting woerd he was a rescue as stated in a different post he got better and now seems to be deteriorating again...again all tank conditions are OK and as should be. He seems to have some black dapple like pattern under his bottom lip? Is that normal? And his two back feet have a little wierd growth? Almost? Tiny tiny tiny lump. His capillaries in his feathers also appear darker and more visible. Any help would be appreciated
    +1
    Unlike
  • Lanalotl:
    Hes a leucistic axie
    +1
    Unlike
  • Chat Bot:
    AmphibiGirl has left the room.
    +1
    Unlike
  • Dibgame:
    Hey guys. First time on this forum and im not sure what formatting i should use but hey here i go.
    +1
    Unlike
  • Jadezoey:
    Hi! I'm being in a hard position where I have to re-home my axolotls. I'm moving out and I would like to find them a new home with someone who can take proper care of them
    +1
    Unlike
  • Jadezoey:
    I have an adult wild type and a juvenile leucistc
    +1
    Unlike
  • Unlike
  • BigAl:
    Oops my bad accidentally sent that
    +1
    Unlike
  • Binditheaxolotl:
    @HalfDrunkToastLol
    +1
    Unlike
  • AxieMomma87:
    is anyone online???
    +1
    Unlike
  • Chat Bot:
    Calgarycoppers has joined the room.
    +1
    Unlike
  • Unlike
  • Chat Bot:
    Calgarycoppers has left the room.
    +1
    Unlike
  • AxieMomma87:
    Are you still here
    +1
    Unlike
  • ZayneSantos:
    Is there anyone on who can give me advice?
    +1
    Unlike
  • Max2445:
    @ZayneSantos, What advice do you need
    +1
    Unlike
  • KrabzAga:
    based on this video what type of salamander might this larva be? I suspect either eastern newt or spotted salamander
    +1
    Unlike
  • KrabzAga:
    help appreciated
    +1
    Unlike
  • KrabzAga:
    they are from missouri
    +1
    Unlike
    KrabzAga: they are from missouri +1
    Top