Just joined the forum, been keeping fish almost a year. I have 2 tanks, both seem happy and vibrant, but I'm worried about stocking levels. I know both are probably overstocked, but by how much I'm not sure. Advice please!
Tank 1 - 4', 55 gallon, pretty heavily planted, Rena XP2 filter, nitrate 0, ammonia 0, nitrate 40ppm, pH 7.0, temp 77F (nitrates are high, I know - I think I've been over-fertilizing the plants and am now doing water changes to cut it down)
6 metallic rosy barb
6 green tiger barb
4 angels (3" high)
4 lace gourami
4 neon tetra
4 xray tetra
2 bristlenose (1 4" male, 1 2" female)
11 bristlenose babies (hooray) (in a net with a bit of wood to munch on)
1 3" rainbow shark
1 6" red sailfin plec
I know the plec will get too big eventually. I didn't buy him, I rescued him when I bought the tank, with occupants, on ebay. The previous owners were not kind to the fish - they didn't condition the water at all and did 100% water changes once a month and scrubbed out the entire inside of the tank and filter. No other water changes - the water was permanently cloudy. Even if the tank is still a bit overstocked, at least the water quality is now much better.
Tank 2 - 2', 10 gallon, no plants, aquarium salt added (at API recommended concentration), Rena internal filter, nitrite 0, ammonia 0, not tested nitrate or pH recently, temp 77F.
5 adult mollies (2 male)
20 baby mollies in various stages of growth
5 adult platies (2 male)
4 tiny platy babies
5 adult guppies
1 adult swordtail (female)
a thriving population of tiny snails - god knows where they came from.
Both tanks get 20% water changes once a week, or more frequently if I see any problems. At a change I use Stress coat, stress zyme, and melafix. I clean the filters every 2 weeks. There's currently no carbon in the filters, just foams and plenty of Eheim bio filter substrate.
So what jumps out at you from all this? What should I be watching or doing? Should I be raising the temperatures at all? Should I add carbon to the filters?