How to make sure my Cory’s are well fed while I’m away

I’m starting to prepare my tanks for ‘vacation’ this December. I’ll be gone for 3 weeks and I’m worried that my Cory’s might not get enough to eat.
I have an automatic feeder (I’ve used it a couple times in the past, it works great. But, I use it for dispensing mini pellets of food. I’ve never had to use it for bigger pellets or algae wafers).
The tank is a bare bottom 20gal quarantine I’ve had running for almost a month now. There is 6 corydoras and 4 neon dwarf rainbowfish in there.
All these fishies are eating well and thriving, but I’m worried that the Cory’s might not eat enough while I’m away for 3 weeks? For the most part, the rainbowfish aren’t too greedy. Some food is usually left to sink down and feed the Cory’s, but I also feed them larger pellets or algae wafers every few days. Is there anything I can do to make sure my Cory’s are well fed? I’ve heard of people having a lot of trouble from those ‘vacation feeder blocks’, and I’m curious if anyone has any advice or experience to share? No one will be around to check on the fish or to change the water for 3 weeks. So understandably, I’m a little bit worried.
‘Tanks’ for any help guys

 

Do you know any neighbours who you trust, that could come every day to feed them? How many days until the vacation? I love your joke by the way

 

Stick to smaller food (granules / minipellets). If you feed enough the Corys will get enough. Corys don't get nutrition from algaewafers, so skip those and use shrimppellets instead.

Don't use those blocks !

 

Stick to smaller food (granules / minipellets). If you feed enough the Corys will get enough. Corys don't get nutrition from algaewafers, so skip those and use shrimppellets instead.

Don't use those blocks !

Awesome advice thank you so much!

Do you know any neighbours who you trust, that could come every day to feed them? How many days until the vacation? I love your joke by the way

Unfortunately I don’t have any neighbours nearby me! I’m not leaving until December 16th, so I have a little while to prepare!

 

Since you are going to be gone for 3 weeks I will recommend you don't drop food in there daily. Every other day or even every third day will help keep things more stable. The less food fed the less ammonia produced so the lower the nitrates will be when you get home.

I agree with DoubleDutch Corys aren't vegetarians. They will eat algae wafers but they aren't good food for them.

 

Since you are going to be gone for 3 weeks I will recommend you don't drop food in there daily. Every other day or even every third day will help keep things more stable. The less food fed the less ammonia produced so the lower the nitrates will be when you get home.

I agree with DoubleDutch Corys aren't vegetarians. They will eat algae wafers but they aren't good food for them.

Okay thank you! I’ll feed them every 2 days. I usually give the Cory’s shrimp pellets, but every now and then I’ll throw in algae wafers. I think after reading what you guys said though, I’ll stop giving them any aglea wafers at all.

 

Okay thank you! I’ll feed them every 2 days. I usually give the Cory’s shrimp pellets, but every now and then I’ll throw in algae wafers. I think after reading what you guys said though, I’ll stop giving them any aglea wafers at all.

You are so very welcome An algae wafer every now and then isn't going to hurt them. Some folks don't realize they are not vegetarians and feed them only algae wafers. It is good that with you it isn't their main food. My corys main food is shrimp pellets and hikari mini wafers for bottom feeders. I also make sure some ot the flakes, crisps or granules I feed my other fish get to the bottom for my little vacuum cleaners.