These cryptocurrencies have decreased in price over the past 24 hours. Below is a specific analysis and investment advice:

1. The strongest declining coins:

IRIS:

Price: 0.009 USD, down 10.89%.

IRISnet is a platform focused on blockchain interoperability. The sharp drop may be due to a lack of positive news or selling pressure.

OAX:

Price: 0.0776 USD, down 8.06%.

This is a less popular coin, highly speculative. If you are interested in this project, thorough research is needed before investing.

HBAR (Hedera):

Price: 0.32268 USD, down 6.12%.

Hedera is a major project highly regarded for its technology (DAG network). The current drop may be an accumulation opportunity if you believe in long-term potential.

2. Moderately declining coins:

ADA (Cardano):

Price: 1.2246 USD, down 3.89%.

This coin has long-term potential due to its strong ecosystem. The current price drop is an opportunity to invest more if you believe in the future of Cardano.

ALGO (Algorand):

Price: 0.5242 USD, down 4.45%.

Algorand stands out for its fast transaction speed and low fees. However, recent performance has been quite weak, so consider the risks when investing.

3. Slightly declining coins:

XLM (Stellar):

Price: 0.5134 USD, down 3.73%.

Stellar focuses on fast and cheap money transfers. This could be an investment option if you believe in the expansion of decentralized financial markets.

CTXC (Cortex):

Price: 0.6473 USD, down 1.92%.

Cortex is an AI-related project, but its popularity is limited. Further research is needed before buying.

4. Investment advice:

Long-term investment:

ADA and HBAR are two suitable coins if you believe in the future of smart contract platforms and DAG technology.

Buying when prices slightly drop may help you reduce average costs and increase profits when prices recover.

Short-term speculation:

IRIS and OAX have strong growth potential but also come with high risks. Only invest if you have done thorough research.

Limit purchases:

Avoid coins that have declined sharply without clear reasons or lack evident technological value, such as NEIRO or QI.