Yeah I might opt for the Ytong but I will have to find the cheapest because to be truthful I don't want to spend so much on that after buying 8 MonoCrystalline solar panels and my £600 Hariwake jumped out of the pond for the second time and met Her fate .
I may go for a small Ytong nest though
Sorry about your fish rubra, koi are truly wonderfully elegant and it breaks my heart to hear about your terrible story...
You could buy a cheap pit of plaster and make your own nest using a mold is you didn't want to buy an expensive Y-tong one!
It is just over budget at £23.98 (Product = £14.99) + (Packaging = £2) + (Shipping = £6.99) = £23.98
I think it looks really good, but you would need to attach an out-world. The chambers/ tunnels are hand carved and every nest is slightly unique! I know others have purchased from this supplier and were happy with your purchase.