We need some thoughts about our current situation. We started with 200 fry in June 2010. Since we had a late start and was not able to finish out our growing season with the fish, we made the decision in Oct to heat a room in our shop, and moved them inside. Well after two months of utility bills, we are making some different choices again. We are planning on harvesting out all of the largest fish, and take the loss of not getting the full growth from them. The smaller Tilapia and the few that have bred which are obviously very small will be moving into our heated ping pong room inside the house. Now this is where we need some thoughts from some of you that are far ahead of us. We need to make a decision about making a homemade biofilter for a 600 gallon tank, and a biofilter for a 50 gallon aquarium so we can put some breeders in it to try to get some fry for next growing season. The store bought filters for the aquarium are just too expensive. Hopefully, our fry will be well on their way next year to continue the outdoor aquaponics system that we had last year. Thanks for any help that you can give. K. Hall
I've known of people with ornamental ponds that made bio filters out of a bin filled with scrubbies. Something like that or bird netting or anything will provide some filtration for you.
Here's another DIY filter....
For the 50 gal, a simple sponge filter would work fine.....and they don't cost too much :-)
For the 50 gal. aquarium 5-10.
For the 600 gal. tank, maybe 200-250#. Thanks
I agree with David Hart, get a decent air pump and several sponge filters, especially if you will have a fry only tank. check out this link:
http://www.jehmco.com/ for the sponge filters
and see if you can find a high volume diaphragm air pump from a hydroponics supply:
Linear piston air pumps air better, but much more expensive. Also a bunch of airstones is never a bad idea.
Ron Thompson told me about hypnotic hydroponics. They have great prices on diaphram air pumps....
They do have 3 sizes.
I bought 2 of them, and they came pretty quick.
here is a link to a DIY swirl filter http://www.ecofilms.com.au/2010/08/20/diy-swirl-filter-for-aquaponics/
good luck I warned you its addictive
Just on the first part of your post.
we made the decision in Oct to heat a room in our shop, and moved them inside. Well after two months of utility bills, we are making some different choices again
Have you ever consider using a compost heater? I’m about to build on this Saturday. Not as fancy as the one in the link but a basic drum and hose in the same fashion to heat the tank in winter...