Hi Shell

Yes, i tried the prawns once, but maybe because it was summer, the smell was too strong (overpowering) and there were too many complaints from the family. Our dinner table was just around corner from the smelly tank & they couldn't stand it.

The coke bottle is a good idea. That might have made a difference. Did it contain the smell, as well as prawn mess?

I put my prawns in a bowl, but that still meant disintegrating bits of prawn could make a mess in the stinky water, especially when I remove the bowl.

Nowawdays, I use the ammonchlor clear ammonia I bought from that website, or I often have a spare cycled sponge or canister filter that I can use for the purpose.