Is my 75 gallon overstocked?

Maya Boone

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Hi all, I’ve had a 75 gallon tank set up for nearly a year and I have gradually added more fish over months. Just wanting to make sure I have not overloaded it!

Filtration: an AC110 and a Marineland Penguin Pro 375
Water parameters: 0 ammonia, 0 nitrite, 30-40 ppm nitrate, 7.2 pH, 76 degrees F

Stocking:
18 rummynose tetra
12 harlequin rasbora
7 African banded barb
10 Corydoras julii
7 green Corydoras aeneus
3 honey gourami
5 juvenile angelfish (about 5-6 months old)
1 bristlenose pleco
2 mystery snails

I have been raising the angels and may trade some of them into my LFS eventually, but I am hoping to possibly get a pair out of it once they mature.
 

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If you end up with more than 1 female angelfish and at least one male angelfish there will be issues when the angels are sexually mature. Otherwise it is high but as long as you do decent water changes weekly it should be fine. Also i would try for nitrate below 10. If your nitrate are creeping up then it is over stocked.
 

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I do weekly water changes (~20%). I used to have much lower nitrates but I thought for a planted tank they needed to be up a bit (20-40 is what I’ve seen consistently online) When nitrate was lower, my crypts were consistently melting. I also can reduce my fertilizer dose and see if that brings the nitrate down a bit.

If I get a breeding pair of angels I will likely resell the others to my LFS, but none have paired off so far. Hoping they do soon.
 
I do weekly water changes (~20%). I used to have much lower nitrates but I thought for a planted tank they needed to be up a bit (20-40 is what I’ve seen consistently online) When nitrate was lower, my crypts were consistently melting. I also can reduce my fertilizer dose and see if that brings the nitrate down a bit.

If I get a breeding pair of angels I will likely resell the others to my LFS, but none have paired off so far. Hoping they do soon.
It takes 9 to 16 months from birth to reach the point of breeding depending on a lot of factors. Males will bicker but not do serious damage so the bickering can be ignored; but females will do serious damage to a fish (usually and angel) they dislike.
 
Looks like you are doing a fine job of maintaining your tank and have selected a really awsome group of fish. Especially the African Banded Barbs. Don't see those very often.

The only problem I can see is the potential trouble stemming from adult Angels. Eventually the Rummynose, Rasboras & Banded Barbs might end up being expensive snacks.

A breeding pair of Angels can be very boisterous & territorial when nesting, which can cause havoc in the community.

If the Angels don't work out, maybe look into Bolivian Rams, which are nice looking, relatively mild Cichlids, that readily breed.

Maybe even Denison Barbs. They don't breed often in captivity, but are beautiful Barbs that would easily co-exist in your fish community.

Btw, nice looking tank.
 
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  • #6
Looks like you are doing a fine job of maintaining your tank and have selected a really awsome group of fish. Especially the African Banded Barbs. Don't see those very often.

The only problem I can see is the potential trouble stemming from adult Angels. Eventually the Rummynose, Rasboras & Banded Barbs might end up being expensive snacks.

A breeding pair of Angels can be very boisterous & territorial when nesting, which can cause havoc in the community.

If the Angels don't work out, maybe look into Bolivian Rams, which are nice looking, relatively mild Cichlids, that readily breed.

Maybe even Denison Barbs. They don't breed often in captivity, but are beautiful Barbs that would easily co-exist in your fish community.

Btw, nice looking tank.
Yeah the African banded barbs have been some of my favorite fish ever! I almost never see them so I snatched some up when my LFS had them in

Thanks for the advice about the angels! I mostly got them because I had never kept them before and wanted to see how they did. I’ve loved them so far, some bickering over food but nothing severe.

I’m already considering rehousing the gouramis (maybe just keeping 1 in my 20 gallon) so I may just do that to reduce the bio load just a tad as well.
 
I've never been a fan of Gouramis. Too many health issues. I've placed them on my most boring fish list. Lol
 
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  • #8
I've never been a fan of Gouramis. Too many health issues. I've placed them on my most boring fish list. Lol
Yeah… I got them when I initially set up the tank and couldn’t do angelfish because of my cherry shrimp and CPDs. Both of those have now migrated to the 20 gallon so the gouramis are the last remnant from that crew. They’re pretty but I think I have all 3 males and they’re always beefing with each other a bit.

Guys I can’t believe this, I literally was just talking about the angels breeding and I just looked in the tank to see two of them have paired off and laid eggs! LOL I guess this answers my question???
 
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