Capewind, I highly recommend NOT buying anymore new fish. EVERY thing your using is way over stocked. Even if your doing water changes daily your so heavily stocked that your going to cause some stunting of growth, and probably some side effects of overstocking including but not limited to Fin damage, easier transfer of Parasite outbreaks, and this time of year ammonia poisoning is extremely dangerous because of limited filtration. Be careful and monitor closely all water conditions.
Larkin, you really think ALL of them are over stocked? I know the fish tanks are pushing it... If you wouldnt mind, I'll give more details on each set up, and you can tell me what you would change about it. We do have more tanks (4, 40 gallons, and another 55 gallon) in the basement, as well as four 60" kiddie pools (100 gallons each FULL, but I only usually fill to about 70 gallons) and some big liner scraps on hand too if we need to make changes... I know some changes were going to be needed as they grew but....
Okay, the 30 gallon tank... if we called all the comets and shubunkins 1.25" at present for an average, x 26 fish... that would be 32.5" fish in a 30 gallon tank. The filter IS small... only rated for 20 gallons, but have water hyacinths in there too... Ammonia and nitrites have been consistent at ZERO... Nitrate was up at 20 ppm. As soon as these guys are big enough to take a pellet (Tetra Granules) and dont need crushed food, they get moved up to another home ... Because of the crushed food, I clean this filter every 3-4 days.
The 55 is also well over stocked. I wanted to move the few (4 or 5) big guys (3") down stairs to the 750, but hubby has gotten them onto our regular food (Tetra Floating sticks), so was going to keep them here til they could manage the bigger food... To be a smart ass, last night, hubby gave these "big guys" some of the normal pellets, and they took them down with no problem, so they are going to get moved in the next day or two, so if we did 40 fish at 2", that is 80" of fish, in a 55 gallon tank... On the tank now are 2 filters... one rated at 70 gallons, and the other at 40... So 110 gallons for filtration... I have an extra 70 gallon filter that can be added if need be... I was cleaning their filters every 4-5 days, but have missed a lot, and the reality is more likely cleaned once a week. Ammonia/nitrite at ZERO, and nitrates also about 20 ppm (while the tank is new, we used their old water).
The 600 gallon plant pond... 32 comets, call all of them at 4" at present... So 128" of fish total... (ALL the inside comets were to end up here)... Filtration wise, not a lot... it's filtering 1000 gph and has ??? 75-80++++ plants. The parents of these babies are only 6-8", so THOUGHT I had plenty of room here, even without any extra filtration or plants??? Ammonia, Nitrite and Nitrate all at zero...
The 750 gallon QT pond... just call all 34 at 4" and growing... Most are solid at 4" with a couple of shubs still closer to 3" but a couple of koi gaining on 5"... So at present (and to change LOL), 136" of fish... No plants, but just over 3000 gph in filitration... Ammonia, Nitrite, and Nitrates, all at zero...
The oldest koi, comet and shub babies inside are growing evenly paced with the few comets still outside... atleast for now...
Unless there is a problem, I do NOT do water changes... water evaporation loss is replaced by water from the outside pond. Never had any parasites (knocking on wood, and have treated incoming fish just in case while in QT). Twice we did have ammonia spikes in the 750, but in both cases, there was instant overload, with brand new, uncycled water... When we brought in the 9 rescue fish (evenly sized 12 - 22") into the QT, ammonia did come up to nearly 1, but think the spawning may have played a roll in that;-) (The whole basement smelled like a bad fish market LOL)
Not for one second am I thinking your concerns are not valid, so asking where you see the biggest concerns, and suggestions to improve... also have a few more pumps on hand, so can build whatever...
And too late on the no more babies advice LOL.
If anyone wants to add input on this, please PM me so not to totally hijack this conversation,,,,