The Mad Jellyfish, located at 903 Washington Ave, Suite 5, Chestertown, Md 21620 is now open. CCA members get a 20% discount on a great selection of tropical fish and equipment.
Currently in stock:

Plecos-
L201 Columbian Snowballs
L129 Columbian Zebras
L009 Smokey Peckolotia and
locally bred L519 Honeycomb Plecos.

Also currently in stock, Neon, Cardinal, LF Serpae, Lemon, Black Phantom, and Buenos Aires Tetras.
Drop by and see us and the new store or contact us at themadjellyfish.com or 443-823-5713.

Additionally, for you history buffs, Chestertown has a rich history in regards to the early American Revolution highlighted by the annual Tea Party that takes place in May as well as one of the few sites in The War of 1812 where the Americans actually beat the British on the battlefield. (Caulk's Field. A bustling downtown area and a phenomenal Farmer's Market every Saturday from 8a to 12p. Come check out the store, the town and make it an enjoyable day trip.

Join us for another epic fish store hop, taking place Saturday, September 26, 2026. During this hop, we will visit a new store, the Mad Jellyfish, as well as House of Tropicals and Londontowne Tropicals. Please sign up no later than Wednesday, September 23, 2026 and let us know if you plan to carpool with us. In addition to the store visits, we will have snacks and drinks, and will stop somewhere to enjoy lunch together. We hope you can join us!

Sign up sheet

This is a replacement list (original list from May 2026

Retired and moving in the near future. I decided to liquidate all my aquarium items. Only Hardware remains and miscellaneous odds and ends.

Local Pick preferred in Perry Hall, MD but open to other arrangements.

Payment in cash or Zelle

Lets keep this thread short, DM me for questions and offers. Then I can update the list as things are sold.


Aquarium Items for sale, package deals if you buy multiple items, make an offer.

All stuff is USED except where noted (NEW)

ITEM # / PRICE


3. $50.00 Caitec TitanEze 65 Gallon Knock-Down Aquarium Tank Stand, 38.5" L X 18.5" W X 33" H will hold both 65(top) and 40B(bottom) PHOTO #1

7. $55.00 (NEW in Box) 36” Marineland Reef Ready LED Light with built in timer PHOTO #3

8. $35.00 36” Marineland Reef Ready LED Light no timer, transformer jack repaired and works fine, NEW spare power supply, PHOTO #30a

16. $125.00 Iwaki (Japan) MD-55RLT pressure water pump rated 1080 GPH @ 4’ head, 1” MPT IN/OUT PHOTO #5

17. $100.00 Little Giant 5MD-SC pressure water pump rated 990 GPH @ 3’ head, ½” OUT/ 1” IN MPT PHOTO #4

19. $20.00 for lot of 3 – hang on inside of tank breeder/fry cages with clear viewing panel. No longer made by JEMCO PHOTO #19, These are nice and handy for new fry!

22. $25.00 Brine Shrimp Hatching Set up - includes 2 bases for air hook ups (you supply 2 liter plastic bottles), Clamp reflector light for heating the water, baby brine nets, strainer, mini air pump and opened bag of marine salt. PHOTO #18

23. $5.00 NEW Kent Marine Reef Carbon 900 grams, unopened and sealed PHOTO #33

24. $3.00 NEW MAG CLIP set, unopened in package PHOTO #11

25. $20.00 Two Optima/Maxima Air Pumps includes NEW Optima/Maxima Air Pump repair kit, unopened in packaging PHOTO #29


MICELLANIOUS ITEMS make an offer

30. NEW Roll of clear airline tubing, unknow amount PHOTO #14

31. NEW Lees Acrylic Scrub Pad unopened packaging PHOTO #16

32. NEW three Discus/Angel breeding slates 12” x 3” PHOTO #32

34. Lifegard Big Digital temp alert PHOTO #28

35. 36” Perfecto Fluorescent Light Strip works PHOTO #26

36. Accuair plastic 4 way gang valves #21203 PHOTO #34

36B Accuair plastic 4 way gang valves #21203 new in package

37. 5 Powerheads assorted sizes, (2- 402s and 3 smaller ones) PHOTO #25

38. Alien Skull ornament and Skull ornament w/air activated moving jaw PHOTO #31

40. GE model 15077 8 Outlet Power Strip with Digital Timer (4 timed and 4 Always on) with directions. PHOTO #2, 17

41. Whisper 100 Air Pump working PHOTO #13

42. Whisper 10 Air Pump working

43. ATI Hydro Sponge Filter 1 #5

45. A full 5g bucket of shale pieces brown/red and gray colors incudes bucket

47. Bucket of moon rock

Wondering about chlorine and chloramine mostly. I’m on Howard county city water. I like to do water changes with water straight from the tap. I’ve got test strips that show no chlorine but wondering how to keep informed about what the county might add during summer or storm season, etc.

My fish when I was keeping tanganyikans loved the water changes and did well. I’m now keeping different species (rainbows, tetras, plecos and rams) and it’s mostly gone pretty well. I also just added a couple of angels a week ago.

I don’t use Prime and have never used it or otherwise treat the water. The ph in my tanks is around 8 and tap water is 7.6, which I know isn’t ideal for rams. I do have two sets of M/F that appear to have bonded in the last couple weeks. No breeding yet but they seem to be very happy.

I lost two rams with definitive post water change symptoms. Weirdly, it was two separate occasions, both times it was the biggest and most dominant ram in the group and most dominant fish in the tank and no other fish were affected. There were 6-8 rams in the tank, along with various tetras and plecos. The day after the water changes, one ram just started losing color and behaving listlessly. In one instance it was gasping at the top of the tank. In the other, it hung near the bottom. Definitely a mistake by me but trying to figure out what it was to hopefully avoid it again. Thanks!

4 Geophagus sveni and 1 Geophagus abalios up for sale. 3-5" $50 takes all. I am not looking to sell them individually. Pickup in Frederick, Md.