s. ayalp
I just throw them in the pool, logs branches and etc. Koi eat whatever sinks, remaining is devoured by insectivorous fish (we call it fresh water-silver fish - I don't have guppies). Logs remain in the water for about 10-15 days because I am lazy and they start to sink afterwards.
s. ayalp wrote:
Feeding the fish with logs full with insects is one option...