PhytoPheed 8oz - Mercer of Montana's Concentrated Guillard's Formula f/2

Great for growing my phyto for my reef. Thank you to the seller for using biodegradable peanuts for packaging, had fun melting them.

Great results! I spoke with David and he is really knowledgeable and has answered all my questions quickly and in detail. I wouldn’t hestitate to buy again. He also sells phytoplankton, which is excellent! I would recommend he sell copepods and rotifers, but to each their own. I would buy them if he did.

Works great!

I learned this the hard way- you must use 2x the suggested amount in order for your phytoplankton to thrive. Whenever I use only the suggested amount the whole batch dies

This stuff made my phytoplankton multiply like crazy. Way better than using aquarium fertilizer. People who use miracle grow are idiots, don't be one of those people.

I was able to quickly ramp up a very small Chlorella culture in days. Amazing product.

THIS KILLED MY SCIENCE PROJECT AFTER 2 MONTHS!I WAS GROWING A VERY LARGE BATCH OF GLOWING BIO-LUMINESCENT LIFE,I HAD THEM DOING GREAT FOR OVER A YEAR.I TRIED TO SAVE MONEY BUYING THIS PRODUCT.I USED IT, ALL SEEMED TO BE EXCELLENT,BUT ABOUT 6 WEEKS LATER, I SAW MILKY WHITE SPOTS,FLOATING ON ONE OF THE TANKS SURFACE.THE NEXT DAY, THE CRYSTAL CLEAR WATER TURNED INTO A STRINGY MESS.EVERYTHING DIED SHORTLY AFTER ALL THIS STRINGY STUFF SUDDENLY APPEARED!I ADDED THIS TO ALL OF MY TANKS, THINKING I WAS GIVING IT VERACITY!THE DEATH OF ALL TANKS? ALL MY TIME, AND THOUSANDS OF DOLLARS?I COULD NOT UNDERSTAND WHAT A BIOLOGIST TOLD ME.BUT IT WAS SOMETHING ABOUT IT NOT BEING LAB QUALITY PURIFICATION?MAYBE YOU MAKE THIS PRODUCT FOR A DIFFERENT PURPOSE?OR MAYBE I AM AN IDIOT WHO ORDERED THE WRONG PRODUCT?ALL I WOULD LIKE FOR IS THIS COMPANY TO ADDRESS WHY I LOST MY LAB?

This is a great product to culture microalgae. In the past I've used Miracle Gro with mostly failure where the culture would completely crash relatively quickly.This nannochloropsis culture got dark quickly and has remained alive for more than a 3 weeks now, there's a power head in there that you cant even see anymore.