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They're not too bad to keep depending on your location. CBS and CRSs prefer it cooler with ideal temperatures being 22 - 24c with good filtration but

not in terms of volume/turnover but good biological as opposed to physical. My own tanks only turn over 2 - 3 times per hours tops. I prefer my shrimp

to be a bit more active and if your turnover is really high the shrimps will stay on the bottom and won't move much plus of course you'll drawn any

shrimplets straight into the filter as well. Other key thing like any fish/animal is good clean water, ammonia should always be pretty much non-existant

but they can cope with it for short durations. My present CBS and CRS tanks are running about 0.85ppm presently for ammonia, they're not 100% happy

about it but those tanks are still cycling having moved house. And the ammonia is from the ADA substrate I'm using.

Ph for CBS/CRSs should also generally be between 6.0 - 6.5 from my experience and reading. They will grow, survive and thrive in other levels but not

really suited to a Ph above 7, they prefer acidic hence the ADA or similar type substrates. And no tank mates that will eat them, and that includes

pretty much most fish I'm afraid.

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thanks for that KiwiBigD another thing i would like to know is whats the best substrate and why? i have seen many shrimp tanks with this kind of substrate and just want to know what the difference is compared to other substrates


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Its not so much a best substrate but more a reliable substrate. Personally I prefer ADA and having just purchased 12 more bags its not cheap but I find it just

works and with my water my Ph stays between 6.2 and 6.4 constantly with very little change bar night and day with plants going through their processes. I

have used the UP AQUA brand as well but found it breaks down too quickly for my liking. Also ADA has a really nice powder and a variety of powders in other

colours bar the standard black/dark brown.

I'm trying some of the benibachi as well and although similar it behaves slightly different in terms of Ph. Like ADA there is still ammonia as the tank goes through

the process but slightly less so I suspect its baked at higher temperatures or less foreign matter in it. ADA often has small pieces of wood in it so you do need

to clean the waterline a bit but that doesn't worry me, I like working my tanks and general cleanup. Plus the pieces of wood will sink eventually in most cases

and add to the substrate as well as the look of the tank.

There are other substrates as well on the market but really a case of budget and finding one that suits you and your water. Me, I love ADA and we have a few

sellers on here and other forums that can supply it relatively quickly as well. Some have both so it really depends on the look as well. I love the powder as it

gives a more sandy look to the tank without having big gaps between granules.

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