Help needed here. There are hair algaes all over my riccia. How do u remove them? Anyone tried Yamato shrimp? I add a couple of Yamato in my tank - it all died in 3 days w/o even touching the algae. Parameter pH: 6.4 GH: 3-6 kH: < 3 CO2: DIY NO3, NO4 <0.01 Temp: 28-29 C Thanks in advance. Michael, in Singapore which is hot and humid.