Hagen Nutrafin Max Goldfish Sinking Pellet, 18.69-Ounce

:( My goldfish refuse to eat the 'peasant food'(Flakes) now. I have a fancy gold with chronic swim bladder problems, these pellets are perfect for her and she adores them!

Who knew that goldfish could be picky? My nothing-special, pet-store variety goldfish that live in my garden pond don't like this food at all. Also, pellets are fairly large, which might or might not have anything to do with this. This is not a comment on the seller, who was fine.

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When I received my order the fish food was not sealed and the cap had been opened. I call Amazon and they promptly replaced this product. I could not believe how fast they sent a replacement. I got it the next day. The product is great. My fish are eager to eat it. The pellets are the perfect size, not too big and not too small.

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Nothing wrong with yellow fish unless you want them to stay their non-yellow colors. I have 5 tanks and I used this food in 2 of them for the last 5 months or so. My beautiful brown, white, jet black and calico goldfish slowly turned SOLID YELLOW while eating this stuff! My red goldfish and any red or yellow on my koi turned orange. I stopped feeding this food 2 weeks ago and a few of my fish (not all of them) are very slowly regaining their colors. (The new calico goldfish I put in there has stayed a calico on Wardley Essentials Goldfish Premium Flakes 1.95 Ounce This is the food I originally had all my goldfish on to prevent swim bladder and make it sink, I feed this by putting some in a net and keeping it underwater for about 20 seconds.)

Apparently this Nutrafin food has yellow color enhancers. So unless you want ALL your goldfish to turn yellow or orange, do not feed! I use the same water to fill all my tanks, same water chemistry etc., and the only fish that turned colors like this were the ones on this food. So this is definitely the problem! I'm giving this product 2 stars because now I have 2 tanks FULL of yellow or orange fish: How exciting is that?

This food also keeps a bit of a cloud in the water, and I've experienced some stubborn black spot algae in the tanks I use this in. Not sure if this is the problem behind the black spot algae but it hasn't grown in my other tanks.

Overall, I just can't recommend this stuff.

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First off my fish did not take to this food fast despite having been on a pellet diet for over a year. Eventually after about 3 or 4 days they reluctantly began to eat it. I made a concerted effort to watch my fish (a huge Comet that I bought as a feeder fish and just kept!,and 3 Large Black Moors) eat so that I wouldn't over feed them because after the first feeding and them not eating it my 40 gallon tank was so dirty! A few pellets left uneaten will cloud the water almost instantly. The pellets are orangeish which makes the water so dirty. I switched to this food because I'm a prime member and wanted the free shipping! but sadly I'm going to have to go back to the more expensive all around OSI pellets which my fish love.

I hate leaving bad reviews but man has this food has made my aquarium maintenance exponentially more time consuming and all around unpleasant!