Lettuce good or bad?
- Thread starter WRASSER
- Start date
Guy":8x3rcuf2 said:
Yes Guy it is the same live macro that is being harvested monthly removing the toxins from the tank. So that after a short time there are toxins levels acceptable for the livestock. (edit)And the same plant life that maintains the ocean. (/edit)
Much better (then) dead plant life rotting in the tank. From sources unknown and therefore polutants unknown.
beaslbob":xdycsu7n said:
I agree that live macro is an excellent food source. I was just surprised you think so as well.
So basically, as long as you know what the toxins are then it's OK to feed them to your fish? I can't agree with that. Your telling people that adding toxins to the tank is fine as long as algae is present to sequester the toxins and then you say it's fine to feed the toxins to your fish. Pretty bizzare.
I've never had Nori or Laver last long enough to rot in the tank.
Jumping into this a little belatedly, but what are you referring to as toxins?
NH4+, NO2-, NO3- are all toxic if you have enough of them. Taken into plants they are converted into protein where they are not toxic.
Alcohols, terpenes, big ketones, etc would generally not even be taken up by the plant (they would get consumed as substrates for bacteria) unless they were small enough.
Real toxins, like pesticides, and such, have such a low rate of transfer across membranes that plants are an irrelevant source of removal from a system, but even if they were, they are typically resistant to breakdown and therefore would remain toxic to your livestock.
Metals might be helped out of the system by heavy plant loading, but as a matter of fact, they are not removed by the plants themselves, but by the anaerobic zones created near the roots where water doesn't penentrate too well (ie- copper) and the reaction is either microbial of chemical (Cu sulfate formed).
Generalizing that macros remove toxins is somewhat bogus... and then if you are referring to real toxins, not just toxic byproducts of simple metabolism, those generalizations are either wrong or the advice is bad.
Just thought I'd throw a little more depth to the discussion.
NH4+, NO2-, NO3- are all toxic if you have enough of them. Taken into plants they are converted into protein where they are not toxic.
Alcohols, terpenes, big ketones, etc would generally not even be taken up by the plant (they would get consumed as substrates for bacteria) unless they were small enough.
Real toxins, like pesticides, and such, have such a low rate of transfer across membranes that plants are an irrelevant source of removal from a system, but even if they were, they are typically resistant to breakdown and therefore would remain toxic to your livestock.
Metals might be helped out of the system by heavy plant loading, but as a matter of fact, they are not removed by the plants themselves, but by the anaerobic zones created near the roots where water doesn't penentrate too well (ie- copper) and the reaction is either microbial of chemical (Cu sulfate formed).
Generalizing that macros remove toxins is somewhat bogus... and then if you are referring to real toxins, not just toxic byproducts of simple metabolism, those generalizations are either wrong or the advice is bad.
Just thought I'd throw a little more depth to the discussion.
feeding your fish the same macros you're using to remove toxins from your tank...isnt that to an extent, defeating the whole purpose of your refugium? You're just putting those toxins right back into your tank via the fish's digestive system.beaslbob":13iousjh said:
Isn't laver the corean nori that is very salty, fried and soaked in sesame oil? How can that be good for the tangs? I agree with unsalted nori though. And believe it or not, I agree with PLB regarding the living seaweeds. I have a hard time finding something that my tang would eat and would not overtake my tank though.
M.
M.
OK well not only do my tangs eat it, my triggers, dawrfs angles and some wrasse eat it too. I totally agree that it is not the best, it ok, What i want to know is the toxic out the other end and will it be the same as silver sides out the other end?
And yes my tangs eat on the silver sides 8O :wink:
And yes my tangs eat on the silver sides 8O
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