How to avoid Phytoplankton crashes
- Thread starter melev
- Start date
Fishboy1230
New member
2-3 weeks depending on the desired density. I had a one culture that multiplied so rapidly that i could split it in one week!
poissonist
New member
what are you doing with your living phyto??? I HAVE 20 LITERS GROTECH BREEDER AND I USED IT WITH NANOCHLOROPSIS BUT PRODUCTION WAS NOT ENOUGH TO FEED SMALL AMOUNTS OF BRACHIONUS PLICATILIS; i DID AFTER THAT PORPHIRIDIUM RED PHYTO AND IT WAS THE SAME;Now i use EQUIVALENT OF16OO LITERS PER MONTH NANNOCHLOROPSIS MADE BY PROFESSIONNALS AND I CAN FEED MILLIARDS OF BRACHIONUS ONLY BECAUSE I ALSO FEED WITH LARGE AND LIVE QUANTITIES OF BUTCHER YEAST AND I HOPE TO SEE EFFECTS ON ALL CORALS AND OTHER ANIMALS;so when i see you guys doing with little bottles of phyto i wonder what results you can obtain????????????????????????
sinister52
New member
can u use phytofeast to start these?
salty joe
Active member
Hey, I have not tried the phyto thing yet, but I wonder that maybe a smaller wattage lamp could be used if it had no reflector and was placed in the middle of a white bucket. It looks like there would be room for 4 cultures. Maybe cut a couple flat spots on the perimeter of the lid for the airlines, and loosely set the lid on top for a reflector.
It might also be worthwhile to find how many lumens a given lamp produces. Some lamps produce more lumens/watt than others. I'm not sure what part of the spectrum is critical for phyto, but getting a spectral graph for a lamp usually only takes a phone call or two.
I'm always trying to squeeze everything I can out of every single watt.
Joe
It might also be worthwhile to find how many lumens a given lamp produces. Some lamps produce more lumens/watt than others. I'm not sure what part of the spectrum is critical for phyto, but getting a spectral graph for a lamp usually only takes a phone call or two.
I'm always trying to squeeze everything I can out of every single watt.
Joe
Oooops - my fault. I thought you wanted to use the CO2 from the yeast to grow the phyto. Actually, you don't even need to grow the yeast. You can simply feed the rotifers with bakers yeast dissolved in water. The reason most people grow phyto though is to provide food for the pods in their refugia/tank.
With an adequate light source, carbon becomes the rate limiting nutrient in algal culture, so supplementing CO2 significantly accelerates growth. The ideal way to deliver CO2, however, would be to use a pH controller as the degree of pH suppression would correlate with amount of CO2 delivered (This is what most people do in freshwater naturally planted tanks). I used to have a system like this setup on a freshwater tank and man did the plants grow! Don't know for sure about algal culture though...
For a planted tank, yes a controller is great. However, for a phyto culture you would not need it, just turn the CO2 off when the lights go off. The photosynthesis in a dense algae culture will cause a high pH, more than enough to counter the pH lowering effect of adding CO2
Is CO2 worth using, probably not in a home culture situation. In a commercial situation it can certainly increase your production enough to be worthwile.
<a href=showthread.php?s=&postid=9513400#post9513400 target=_blank>Originally posted</a> by billsreef
For a planted tank, yes a controller is great. However, for a phyto culture you would not need it, just turn the CO2 off when the lights go off. The photosynthesis in a dense algae culture will cause a high pH, more than enough to counter the pH lowering effect of adding CO2
Is CO2 worth using, probably not in a home culture situation. In a commercial situation it can certainly increase your production enough to be worthwile.
Yet using a controller would still result in more precise dosing and most efficient utilization of CO2 - But I agree - likely not worth the investment.
my attempt to start a phyto culture with DT's has failed, im not sayin it wont work, maibe the phyto i bought was probably to old or something. I have placed an order of starter culture disks with floridaaquafarms.com . Im going to give it another try and will update with pictures as soon as i can
