Caridina Shrimp can add a big pop to an aquarium IDEAL for their water parameters! These shrimp are for intermediate to Expert shrimp keepers! They require RODI water that is remineralized to around 2 to 4 Gh, 0-1 Kh, 90-130 TDS and a Ph of 5.6 to 6.4. They need active substrate that buffers the Ph levels! If you can master your water parameters, these guys will work for you! Adding more Caridina Shrimp Monthly!