A good amount of people might find this to be a dumb idea but I don't otherwise I wouldn't post it. That and I'm desperate for money. I wish I could say I was saving up for some pet stuff but I'm really trying just to save up for everyday life... Anyway... Coconut shells in your fish tank... I started out making these for rodents, they love them, but I have incoporated them into other creatures tanks such as lizards and frogs. I think made one for my own fish tank. Basically it's half of a coconut shell with a bunch of holes drilled in it. The holes and designs could vary quite a bit for different tastes and different fish. Lets say you had some small cichlids of some other medium sized fish that like to hide. I could place some larger holes in the shell providing a unique hiding place. The shell I have in my own tank has smaller holes all over it looking like swiss cheese or something. I sometimes place plants in the upper holes and my khuli loach loves to hide under it. I could even cut designs into it, like a fish for instance. The shell could also be carved or etched with silly designs or even your pet's name. You could place an airline under it and have bubbles come out the top of the shell... There are many ideas I have, if anyone is interested please let me know. I'll have to take some pics and then find someone with a scanner before I can get some pics up, but I really think some people might like the idea. Also, coconut shells are naturally free from parasites, very hardy, and used in some of the best charcoal for aquarium filters. I also boil them a lot before using them to get some of the color and or tannins out. I've had mine in my tank for quite a while, it has a light coating of green on it from algae that I think ads to it's character... Anyway, my fish love it... Also, anyone with small rodents or anything else that likes to hide, it makes a great hiding spot for them as well... As far as cost goes, I haven't completely decided but it would be relatively cheap. Let me know what you all think...