I am not a new tank owner, but I am new to having baby pleco's.
I have a simple 20 gal, with bio filter and giant resin rock with caves in it for deco. I also had a large plastic vine plant deco which I have since removed. I had a male bristlenose pleco, 2 cory's, and a few neons. oh and a snail. My daughter had a female pleco but her tank dived so I put her female in my tank. I then lost sight of the male. Both the male and female were about 2 inches at that point. I figured the male must have died because I didn't see him for about 7 months, even after intense searching. Turns out, he was being daddy. I looked in my tank about two months ago and had around 10 babies, that I could count. Then about two weeks later, I had another 10 or so. Then about a month later, I had another 20. needless to say, I had a ton of baby fish and all seemed to be doing great. I mainly feed algae wafers, plus a pinch of flake, and a couple of sinking food for the cory's. I fed them about once every day or two. I also put some zucchini in the tank and the babies loved that. I always remove the remaining after a couple of hours.
Today I was getting ready to carefully clean the tank, and remove the bigger babies to take to the local aquarium. All the babies, and all but one neon were dead. The cory's look ok, and the female pleco looks alright. I am assuming the male is ok too because I very rarely see him, and I have another fresh batch of about 40 babies.
I cleaned (carefully vacuumed) the tank, removed the plant and dead fish, and changed the filter. The water tests fine. The plant had some form of fungus on it, probably from rotted food I'm guessing. The babies all look good...swimming around nicely and eating....but they seem to have teeny tiny white spots on them here n there. I cannot tell if those are naturally there, or if it could be ick, or even air bubbles. I would like to save them of course, and the remaining fish I have. any ideas?