Hi, first off I have to say your system is great and your buds look great. I to have a love for aquaponics. So much so I spent a lot of money on a University of Manoa minor in aquaponics, lol. I thought i might share what I know.

Anyway I do something similar to what you are doing but with vegetables of various sorts and 100% organic. There is a problem that commonly occurs in 100% organic aquaponic systems, there is no Potassium or Phosphate or micronutirents and in long term systems there is not enough iron chelate. There are several solutions to the problems in aquaponics. It is also possible to close the entire cycle of the system...where the only input is food waste.

chickens over fish pond- chickens shit in pond and the shit is great npk and dissolves well right out of the chicken and into the pond, and you get eggs too...can you say wake and bake omelet :jointsmile: (In china they use pig manure from pork farms in massive scale operations.)

bat guanno- Same as chicken except you have to pay for it and you get no eggs I use bat guanno because I haven't bought chickens yet, or a cage.

wood ash- I have one of those new charbroil infrared barbecues, it allows you to cook your food with wood chips in the bottom really easily. The wood chips turns to ash, and i put it in a womens nylon stocking and place in the fish bin. Wood ash has potassium phosphorus an magnesium. Alternative method for making wood ash...campfire.

vermiponics-there are many ways to intergrate worms into aquaponics:

a. compost your food with worms, put their casings in a nylon stocking and hang the stocking in in a bucket right over the top of an air stone. This leaches nutrients into the water and provides beneficial bacteria that prevent most diseases when used as a foilar spray. Dump the rest of the bucket into the pond, or set up a peristaltic pump system.

b. worms can be trained to not die in an ebb and flow system if the cycle of water is short and they break down the muck that eventually clogs your media.

c. worms can be fed to your fish as food.

Black soldier fly larvae- buy this, Protaââ??¢Culture & The BioPodââ??¢ - Advanced Composting Using Black Soldier Fly: The Future of Food Waste Diversion & Recycling, it composts food scraps at insane rates and self harvests the larvae for consumption by your fish, (and possibly chickens). It also works with milk and meat, which will kill worms. The resulting byproduct can then be fed to the worms, which make compost tea for your pond and more food for fish (and chickens).

azomite- provides micro nutrients from lava. you may have to buy this...i get it off the volcano i live on

add iron chelate-(ok maybe not 100% organic ) iron chelate keeps your leaves very dark green an prevents chlorosis, yellow and light green plant leaves. )

I love the direct injection of nutrients its an biological engineers pipe dream, however its technical overkill just change your fish species. Selection of fish is crucial to easy maintenance. Catfish are ideal. Asian catfish preferably. They are invincible fish. They have proto lungs and gills; theoretically you could grow catfish on your floor as long as you keep it moist... :stoned: We had one flop out of a tank in the lab and it lived over the entire weekend on the floor, it was really dry though and almost died, but nonetheless it ultimately lived. I dissected a catfish an severed its spinal cord and its heart still beat with no tissue connecting the body to the head, very hardy indeed. I personally hate talapia, too much maintenance and they over breed in a massively food rich environment (overfeeding just adds nutrients and cat fish can gulp air, so don't worry about them). Rainbow Trout are good if you want to eat your fish, but are SOOOO easy to kill. Thus, catfish are the best for cannabis growing (they can survive inorganic fertilizer too but I would not eat them...). Catfish love high density as well. We got up to half cat fish and half water in a 10 gallon fish tank with an air-stone and coke 6pack rings for biological filter media that the fish can swim through. The tank needed a cafeteria tray with a brick on it to keep them from jumping out. Make sure to fill the tank with 2 inch PVC in 6-12 inch lengths for them to chill in. The more fish per gallon the more concentrated you can get the nutrients per square foot of grow space.

Aeroponic aquaponic has also been done at the lab with tomatoes. You just use a bunch of ultrasonic misters on floaters in a fish pond with plants hanging over the top. This set up would most likely destroy the entire structure that contained your gro-op if your indoor tho. Humidity gets insane and destroys your house (but cools the area free A/C).

Aloha from Maui