Some information I forgot to detail:
1~What type of fish is afflicted? In addition, please describe what is wrong with the fish to the best of your ability (i.e. cotton like growth, bloated, etc.). — guppies
2~What are your tank parameters (ammonia, nitrites, nitrates, temp, pH)? Please give exact values. — ammonia 0ppm, nitrite 0ppm, nitrate 2.5-5ppm, pH 7.4, temp 78°F
3~ How large is the tank? How long has the tank been set up? 20 gallon long, set up about 6 months
4~What type of filtration are you using? Please give the name and number (i.e. Fluval 304) and amount of
gph if known. AquaClear 50
5~How many fish are in the tank? What kinds of fish are they and what are their current sizes? 7 neon tetras, about 10-15 guppies (mostly babies so hard to count)
6~When is the last time you did a water change and vacuum the gravel? How often do you do this? How much water do you remove at a time? Water change and gravel vacc every 1-2 weeks, remove about 25% water
7~How long have you had the fish? If the fish is new, how did you acclimate it/them? I’ve had the fish 4 months, guppies were born in the tank
8~Have you added anything new to the tank--decor, new dechlorinator, new substrate, etc.? No
9~What kind of food have you been feeding your fish, have you changed their diet recently? Frozen brine shrimp