Read Best Reviews of U.P. Aqua Shrimp Sand Here
I purchased several bags of U.P. Aqua Shrimp Substrate for a couple tanks (20 Long PFR/10 PRL) based off of being newer to the market and a few glowing reviews. Here in the US we do not get many of the substrates that are available in HK, Japan, and Europe due to import restrictions and lack of importers in general.Overall, it does look good and is what I would consider the only reason I haven't gave it away. Small ~1MM grains are easy for shrimp to play with, and several of my PFRs like to actually dig into it while scavenging. The reason they are able to interact with it so much is entirely due to the lightweight of the grains. Planting anything with buoyancy is frustrating without using inert weights, including Java Ferns which will "walk" around the tank at night without them in the currents. Waving a few fingers through the water and creating a current will send little black grains everywhere. Ph Buffering ability is pretty much non-existent unless you fill 1/5 of a 10G tank which wasn't a primary concern of mine as I use a 5 stage RO/DI anyways. Tested with both house tap, RO, grocery store mineral water and could not see any significant Ph buffering. There was no ammonia spike detected which is nice.
That being said, it would look incredible in a small desk nano as long as you are not depending on it to do much else than be inert. In that aspect I gave it 3 stars on looks alone, and it didn't give me any cloudiness issues to speak of. I will keep it in a few tanks, but I cannot say I am willing to spend that much again for an inactive substrate. There are much better values around here (twice as much product, actually buffer 6.5, and cost half the price).This is an exceptionally clean and attractive substrate and so far I am very impressed. It rinses nearly clear and partial water changes do not cloud the water. One bag does a 10 gallon tank adequately.


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