Bob wrote: > Simone- > Okay, Dude. How do you determine that fish have a calcium definciency? > Not being critical, I really am curious about how hobbyists figure out stuff > like that. Well I'm not sure about what I'm thinking but I saw that the fins are really fragile expecially at their edges. When I started feeding my Apisto on bloodworms, larvas and BS and when I took the hardness down the fins started growing and they became really nice and their colours were fantastic, two months ago I stopped feeding my apisto on bloodworms and larvas and now I'm noticing that the fins are getting more fragile and shorter than before so I thought about a calcium deficency. What do you think? Bye Simone Vicini (psvicini@mdnet.it) Autumn is coming and summer is leaving