Carib Sea Aquarum Coral Gravel
Very nice crushed coral
Cool stuff, with crushed coral and small shells. Perfect for a marine tank or if you need to raise ph in a freshwater. My API filtered tap water comes in at 7.0 ph. With the crushed coral it went up to 7.6.
February 25, 2014
carib sea substrate for marine tanks
i used this substrate in my 60 gallon marine tank and it cultured extremely fastand the ph and sea levels were right were they were suppose to be a superior product and my tank is crystal clear too .fish seem to like the great comfort of this substrate and it buffers the ph to a 8.0 8.2 with no problem. i can highly recommend this product and you won,t be dissappointed and neither will your fish
February 20, 2014
Got a washing machine handy?
Pre-washed?? I don't think so. The first few rinses - Elsie would be proud. Looked like Grade A milk coming out of the bucket. After an hour or so of rinsing, and many gallons of water later, I had something somewhat close to clean. My tank filter cleaned up the rest.
The substrate itself - very nice looking...very coarse with lots of broken shells. Nice light color - looks good in the tank.
January 3, 2014
This substrate is ideal for maintaining a high PH. It is specifically blended for optimum chemical and biological balance. Also, helps to reduce nitrites, nitrates and ammonia spikes. The coral color is natural and it may require some rinsing to remove dust particles. I plan to buy more bags of coral for a 40 gallon aquarium. I recommend this product for aquariums requiring a high PH.
January 24, 2013