r/Otocinclus

I have 4 otocinclus, 2 of them have round bellies and im wondering if they are carrying eggs or if they have an issue? Its 2 different otos and 1 is much bigger than the other

This is my 75 liter or 20 gallon tank. I was curious what type of fish or plant I could add to my existing tank. I have a co2 system and an chihiros universal light. Please lmk.

Last week I noticed one of my Otos looked pale and had a blotchy stripe. I checked all my water parameters and confirmed they were good. Then I promptly ended up really sick myself for several days. Now that I'm back with the living, he still seems unwell and I need help figuring out what to do for him. I'm setting up my little hospital tank tonight and I have some meds (sulfaplex and kanaplex), but I have no idea what I'm attempting to treat. He's active and eating/grazing happily otherwise. The 5 other Otos in the tank seem fine.

The first 4 pics are from today and the last 3 from last week.

Tank: 10 gallon, planted tank that has been cycled about 5 months.

Stock: 6 Otos, 2 Amanos and a handful of Neocaridina.

Water: Heated to 72°F with a HOB filter

Tested with API Liquid Test Kits: 0 ammonia/ 0 nitrite/ <5 ppm nitrate (it is indeed cycled. I think my pothos helps keep the nitrate low)

pH 8.0, GH 8, KH 5

Food: I feed every other day and alternate between Shrimp Envy Pellets and soilent green with occasional blanched zucchini