Currently planning out my 40 Breeder tank now that it's established (it cycled over a month ago, currently houses 2 bristlenose plecos, MTS and ramshorn snails). I have an EHEIM 2211 canister filter running plus a big sponge filter suggested for 75+ gallon tanks. I also have plants (6 anubias, 15 java fern, 3 clumps of java moss, a few lilies, ~12 stem plants). I wouldn't call it heavily planted quite yet but it's getting there as it fills in. The dwarf water lettuce plants have exploded so I know they're pulling up nitrates.
Aq Advisor says I'd be slightly overstocked (not taking the plants into consideration) at 108% capacity:
- 3 Koi swordtails (1M:2F)
- 4 Koi Angelfish
- 2 Super Red Bistlenose Plecos (1M:1F)
- 3 Tiger Nerite Snails
- 10 Malaysian Trumpet Snails
Do you think I can still get away with this given the plants adding a bit of extra filtration? Should I add more mechanical filtration? Aq Adviser does say the filtration capacity is at 109% so that technically matches the stock load.
I was also considering getting a pothos plant but wasn't sure if that would remove too many nitrates and starve the other plants in the tank. Any thoughts on that?
I don't want to push this too far because this is my main display tank, so if I *really* need to scale back on some of the fish please let me know (I'd probably move a pleco out). I don't want things getting out of control. My water change schedule is at least 50% weekly, I could certainly do two per week if that would help.
So take snails out of the equation as there not going to do any thing for bio...looking at 8 fish for a 40b is totally fine..everyone has their own opinions. but you got a sponge, canister, and plants for filtration which is enough. shoot knowing me I would add cory's/otto's too, to that mix of stocking! I had a 40B and was really stocked up. given I had a 2211 and 2215 running the tank, but every thing was healthy and thriving. Also don't always believe these systems that are talking about how much you can stock in a tank blah blah bull. Theres tons of hobbyist that have kept what people would complain "overstock" and had super healthy great looking tanks
One water change a week will be more then sufficient if you doing 50%.
watch your fish, algae, tank it will all show signs if these are getting out of hand.
As long as you keep up on watch changes you'll be fine.
Don't stress over think it/honestly fish keeping is easy.
don't get me wrong good on you for wanting the tank to be just right and the fish happy and healthy but you would know if the tank is to over stocked. Some people dont use common sense but what your doing will be more then fine
Bump: also sorry for the long rant/post..but just trying to get my point across