Uh in my 10g like 6 cories 10 pencilfish 11 hyphessobrycon bentosi (tetra) and then my 4 psudomugil then all my fry I have in thwt tank. Then in my 20 long 4 keyhole chiclid 2 Pearl gourami 4 Siamese algae eater 7 rainbows a bn pleco and a half banded spiny eel. I’d do weekly water changes 50% as opposed to no water changes at all to cope with the stock and I’d throw my 10 gallon’s unused filter on my 20 long and a airstone in my 10g then I’d have a empty 40g but I’d need a 20 long and 10g to do my crazy display refugium phytoplankton doser bloom skimmer scrubber craziness
Those tanks are
way overstocked.
What species of Corydoras do you have in the 10g? Most Corydoras species need a minimum tank size of 20 gallons. (A US 20g Long)
Pencilfish (not sure what species you posses) usually need a 20 gallon tank as a bare minimum.
Hyphessobrycon Bentosi (Ornate Tetra) need a minimum tank size of 30 gallons
None of the species you mentioned above, are suitable in a 10 gallon tank, regardless of the filtration/water changing schedule. They don’t have enough swim room.
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The 20 gallon tank is even more overstocked.
Keyhole Cichlids need a minimum tank size of 30 gallons. A 20 gallon tank MIGHT work for the 4, if that was
all that was in the tank. However, that is not the case.
Keyholes can also get very aggressive during breeding time, and should not be kept with other fish during that period.
Pearl Gouramis need a minimum tank size of 30 gallons as well, and aren’t suitable for that tank.
****Siamese Algae Eaters****
Are completely
not suitable for a
20 gallon tank. A group of Siamese need a 100 gallon tank as a minimum. They need tons of swimming room, and need to be kept in groups of 6+.
I assume when you say “Rainbowfish”, you mean
Melanotaenia boesemani. In that case, Boesemani Rainbowfish need a minimum tank size of 30 gallon, and need to be kept in groups of 6 or more, preferably 8+.
Half Banded Spiny Eel’s need a minimum tank size of 30 gallons. The tank needs to have a much bigger length x width, than height measurement.
——
I’m not going to even go into the water hardness issues that you may run into.
Half of the fish mentioned above need hard water, while half or more need soft/moderately soft.
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You can’t just overstock a tank and say, “Oh yeah, it’ll be fine, because I’m going to do 50% water changes and add another filter!”.
It just doesn’t work like that. An extra filter won’t do anything.
Filters keep the water
clear, not
clean. You should be performing
60%-70% water changes every week, in all of your tanks, regardless of your stock.
—-
Did you do any research before getting any of your fish??
I’m very concerned about you and your fishkeeping, especially considering your other thread that got locked, because you refused to take other people suggestions.
