A few weeks ago, i had bought a frogspawn, and noticed a few days after being in my tank 3 heads dried out and its just a skeleton. Any ideas how this happened? The other 5 heads are doing amazing. I asked a guy at a new LFS near my home and he said it could be attributed to water flow? Insufficient waterflow that is. I just got my Mag 9.5 and Koralia 2 a few minutes ago thru UPS and i will be putting that in my tank today.