well that may expalin my issue with PO4. I feed mostly pellets and they are a repack so i really have no idea what they are. the lfs said they were the good ones.... i run gfo, just a few tablespoons and my phos are in the 0.2 range...i just cant seem to budge them.... i dont want to up the gfo so i may increase the fresh food feeding nd see how it goes
I wish i could get mine down to that. Currently mine are at .97ppm po4 via hanna checker.... i use a large protein skimmer, and have a big ats thats not bringing it down...
i ahd a friend come over the other day and i tested his water...the hanna just blinked at me when I tried to just a result...so i divided the sample and topped off with more water then doubled the result....16.8.
then his nitrates were the color of one of our bali sunsets....ultra orange/red. 100++..... funny enoough his tank is clean and the corals are suoer happy...go figure
Well it works when it grows. But if you get lazy and dont scrape it for say 2 weeks, it doesn't reduce much po4 anymore. Ive got ulva intestinalis growing on it,ideally ive got to scrape it weekly. Plus ive got 5 large fish in my 140 gal. One of them is 12"! My emperor is 8"
I have bought frozen blood worms and they are like empty sausage casings so i threw them out. sometimes i can get live worms from the lfs and they love them, all nice and meaty. I do have a minced concoction in the freezer i made up of yellowfin tuna, squid, scallops, nori sheets and prawns. they seem to like it but not as much as the pellets. I will try to weem them more onto the frozen and i guess if they get hungry enough they will eat it. as for buying frozen, over here it is quite difficult to find
To control nitrates and phosphates, yes. It’s also a better food overall than dried food, closer to what they would eat naturally.
Good question but that doesn’t sound a lot of food for a 140g.
There is no phosphous analysis! i would estimate it with the average of kelp and krill, 0.05 and 1% respectively. I did not do a very thorough search of internet data so let’s pretend for now it is 1% by weight. I think the high number for krill is from a large amount of phospholipids. Every gram of this food added would add 10 mg of P or 30 mg PO4. In 100 gallons this is about 30 mg/380 L or roughly .07 ppm.Yes but im not sure how to calculate. I edited my first post to contain protein data.
Heres the packaging
So about .35ppm po4 similar as Randy said in his phosphate article for flake food at 5 grams. I just picked up some caulerpa racemosa. Hopefully it will drop it to managable levels. Otherwise ill be using lanthanum chloride! Most of my corals are struggling that resent po4 being high some have died already.
